Journal of Food Products Marketing ISSN: 1045-4446 (Print) 1540-4102 (Online) Journal homepage: http://www.tandfonline.com/loi/wfpm20 Halal Purchase Intention Among the Singaporean Muslim Minority Mohd Fauzi Abu-Hussin, Fuadah Johari, Aminuddin Hehsan & Mohd Saiful Anwar Bin Mohd Nawawi To cite this article: Mohd Fauzi Abu-Hussin, Fuadah Johari, Aminuddin Hehsan & Mohd Saiful Anwar Bin Mohd Nawawi (2016): Halal Purchase Intention Among the Singaporean Muslim Minority, Journal of Food Products Marketing, DOI: 10.1080/10454446.2016.1141139 To link to this article: http://dx.doi.org/10.1080/10454446.2016.1141139 Published online: 28 Jun 2016. Submit your article to this journal Article views: 14 View related articles View Crossmark data Full Terms & Conditions of access and use can be found at http://www.tandfonline.com/action/journalInformation?journalCode=wfpm20 Download by: [Weill Cornell Medical College] Date: 30 July 2016, At: 11:45 JOURNAL OF FOOD PRODUCTS MARKETING http://dx.doi.org/10.1080/10454446.2016.1141139 Halal Purchase Intention Among the Singaporean Muslim Minority Mohd Fauzi Abu-Hussin a, Fuadah Johari b, Aminuddin Hehsana, and Mohd Saiful Anwar Bin Mohd Nawawic Downloaded by [Weill Cornell Medical College] at 11:45 30 July 2016 a Faculty of Islamic Civilization, UTM, Johor Bahru, Malaysia; bFaculty of Economics and Muamalat, Universiti Sains Islam Malaysia (USIM), Nilai, Malaysia; cAcademy of Islamic Studies, University of Malaya, Kuala Lumpur, Malaysia ABSTRACT KEYWORDS Muslim consumers’ awareness toward halal foods and products has been increasing. The halal concept becomes consumers’ vital concern as it covers wide areas of consumption, though one might perceive it as only a food-related issue. Given this background, this article aims to investigate the factors that influence consumers’ intention to purchase halal-certified foods and products. By using Ajzen’s theory of planned behavior (TPB) as a theoretical framework, this research employed a quantitative survey with a sample of 332 Muslim consumers living in Singapore to examine Singaporean Muslim preferences in purchasing halal foods and products. Data gathered from the survey were then explored and analyzed. Multiple regression analysis results indicate that all TPB variables have a positive and significant influence on the intention to purchase halal-certified products among the Muslim minority in Singapore. Halal-certified foods; Muslim minority; planned behavior Introduction Halal is an Arabic/Quranic term that means “permissible” or “allowed.” It can be applied to various aspects of Muslim life, including transaction practices, muamalah, that relate to ibadah. For the majority of Muslims, however, halal refers to the daily consumption of food, medicine, pharmaceuticals, and so on. In defining halal in accordance to Islamic teaching and law, all issues concerning halal or haram and all disputes should be referred to the Quran and Sunnah (prophetic tradition). A particular food or consumer product becomes halal or haram by Shariah law if it is considered so by any one of the above-mentioned sources or fatwa (religious edicts) issued by a competent Islamic authority (Latif, 2011). Although obtaining halal foods is not a major issue in a country where Muslims are in the majority, problems occur when a significant amount of processed food, medicine, and other products is imported. In some countries CONTACT Mohd Fauzi Abu-Hussin mohdfauziabu@utm.my Teknologi Malaysia (UTM), 81310 Johor Bahru, Malaysia. © 2016 Taylor & Francis Faculty of Islamic Civilization, Universiti Downloaded by [Weill Cornell Medical College] at 11:45 30 July 2016 2 M. F. ABU-HUSSIN ET AL. where Muslims are in the minority or even represent slightly more than 50% and where halal certification had been virtually nonexistent, Muslims have begun to rely on halal-certified products, particularly meats and processed food (Chaudry, Jackson, Hussaini, & Hussaini, 2000). In fact, the Muslim community had no formally established infrastructure to monitor halal authentication. Nevertheless, recent developments show that many Muslim countries have developed their own standards and system of certifying products’ halalness. This development shows that Muslim consumer awareness of halal products has been increasing, and this leads to the increasing demand for certified halal products. This trend is seen in both Muslim majority and minority countries. With the effect of globalization, the circulation of certified halal products has become significant around the globe. Muslim minority countries, however, not only consume certified halal products but also produce halal and market them all over the world. Singapore, for example, issues halal certification that is highly recognized all over the Muslim world. The Muslim consumer market is the fastest-growing in the world, owing to two reasons. First, it can be linked to religious favor and beliefs that it is cleaner, healthier, and tastier (Burgmann, 2007). Second, there is tremendous acceptance of halal within the global population. The Canadian International Markets Bureau reports an international halal food trade of $150 billion a year. Scope and objectives Halal products have become a phenomenon in Muslim majority countries, especially among the Muslim countries in Southeast Asia. Malaysia, Indonesia, and Brunei introduced their own halal accreditation to assure that “halal claimed” products are certified halal. Singapore, a Muslim minority country, introduced halal certification through Majlis Ugama Islam Singapura, known as MUIS (Islamic Religious Council of Singapore). Consumers in non-majority Muslim countries such as Singapore might find it difficult to find halal foods and products, and they may have to look to neighboring countries such as Malaysia. The objective of this study is to investigate Singaporean Muslim preferences in obtaining halal foods and products by using the classical theory of planned behavior. Given the increasing phenomenon of halal-based products, investigating consumer decisions toward purchasing halal-certified products is timely (Bonne, Iris, Florence, & Verbeke, 2007). The study of halal consumption is also important because the market for halal is booming and has policy implications. Therefore, this research explores the dimensions of the purchasing intentions of halal products among the Singaporean Muslim minority. JOURNAL OF FOOD PRODUCTS MARKETING 3 Downloaded by [Weill Cornell Medical College] at 11:45 30 July 2016 Determining halal food consumption There have been several proposed models for researchers to explain consumer behaviors toward food in general. Works by Sparks and Shepherd (1992); Robinson and Smith (2002); Shepherd, Sparks, and Guthrie (2005); Chen (2007); Arvola et al. (2008); and Leßmann and Masson (2015) on organic food consumption, Bogers, Brug, Van Assema, and Dagnelie (2004); Lautenschlager and Smith (2007); Emanuel, McCully, Gallagher, and Updegraff (2012) on fruit and vegetable consumption; and also works on attitudes toward food choice behaviors (Keith, Nikolaos, & Panagiotis, 1994) are among the interesting topics in determining consumer behavior toward a set of dietary preferences. There is also research attributed to halal food preferences (Bonne et al., 2007; Bonne & Verbeke, 2008; Shah Alam & Mohamed Sayuti, 2011; Soesilowati, 2010; Stephenson, 2014; Wu, Yang, & Chiu, 2014). Existing research on halal food preferences has covered various aspects, including Muslim perception and acceptance of halal food and its credentials (Khalek, 2014; Mathew, Abdullah, & Ismail, 2014; Omar, Mat, Imhemed, & Ali, 2012), noncompliance issues (Rahman, Saleh, Rahman, & Hashim, 2011), consumer purchasing behaviors (Bonne et al., 2007; Shah Alam & Mohamed Sayuti, 2011), trust in the halal process (Bonne & Verbeke, 2008), and halal logistics (Tieman, Ghazali, & Vorst, 2013). Many studies on this issue were conducted on Muslim majority countries such as Malaysia and Indonesia, while only a few were focused on Muslim minority countries (see, for example, Bonne et al., 2007; Bonne & Verbeke, 2006, 2008; Bonne, Vermeir, & Verbeke, 2008; Şahin, Pekkirbizli, Kayser, & Theuvsen, 2014). Most of the research was in Europe. To date, there has been very little focus on investigating the determinants of halal food consumption among the Muslim minorities in Asia. It is argued that halal food preference is determined by individual attitudes and expectations from peers (Bonne et al., 2007; Shah Alam & Mohamed Sayuti, 2011). Soesilowati (2010) argued that consumer behavior toward halal is also affected by cultural and psychological characteristics. Religious concerns and religious identity can also be contributing factors in consuming halal products (Bonne et al., 2007; Shaari & Mohd Arifin, 2009). Given that halal food is marketed using the halal certification label, halal food labeling is highly important (A Guide to Food Labelling and Advertisements, 2015; Vijaykumar, Lwin, Chao, & Au, 2013). This study analyzes the determinant factors of halal food consumption among Singaporean Muslims in which they are minority. By using the theory of planned behavior (TPB) by Ajzen (1985, 1991), this study considers three major factors of TPB and also examines trust, halal certifications, and religious concerns in the analysis. Further discussion on TPB is in the next section. 4 M. F. ABU-HUSSIN ET AL. Theoretical framework Downloaded by [Weill Cornell Medical College] at 11:45 30 July 2016 Theory of planned behavior To determine consumer behavior toward food selection, the TPB by Ajzen (1985, 1991) is employed. According to the theory, behavioral intention is determined by attitude, subjective norm, and perceived behavioral control (beliefs about internal and external barriers that may hinder the behavior to be performed). An underlying premise for this study is the belief about halal food purchasing. Past research has suggested different approaches to assessing and determining an individual intention toward unethical conduct. These can be found in the theory of reasoned action (TRA) by Fishbein and Ajzen (1975); and Ajzen and Fishbein (1980) and the TPB (Ajzen, 1985, 1991). These two models have been extensively utilized to study different behaviors in social psychological research. The TRA model is concerned with consciously intended behaviors (Kurland, 1995, p. 58). Although these two models determine different behavioral norms in psychological issues, they have also been applied to examine ethical and/or moral decision-making, and to examine business ethics as well as consumer behavior (Arvola et al., 2008; Berg, Jonsson, & Conner, 2000; Bogers et al., 2004; Dunn, Mohr, Wilson, & Wittert, 2011; Kurland, 1995; Mahon, Cowan, & McCarthy, 2006; Shepherd et al., 2005; Verbeke & Vackier, 2005; Vermeir & Verbeke, 2008; White, Terry, Troup, Rempel, & Norman, 2010). Despite the advantages of using the theory of reasoned action, according to Kurland (1995), it is limited because of the assumption of volitional control. Therefore, the concept of perceived behavioral control was introduced to create the theory of planned behavior (Ajzen, 1985, 1991). The theory of planned behavior was coined by Ajzen (1985, 1991) as an extension of the theory of reasoned action. His review in 1991 concluded that individual behavior depends on motivation (intentions) and ability (behavioral control). Intentions are a function of three determinants, namely, behavioral beliefs (which are assumed to influence attitudes toward the behavior), normative beliefs (which constitute the underlying determinants of subjective norms), and control beliefs (which provide the basis for perceptions of behavioral control (Ajzen, 1991). These three determinants of behavioral beliefs, normative beliefs, and perceived behavioral control each contribute to a person’s intention to perform behavior (see Figure 1 for details). Whereby behavioral beliefs produce favorable and unfavorable attitudes toward behavior, normative beliefs result in perceived social pressure, and control beliefs give rise to perceived control behavior (Haron, Ismail, & Razak., 2011). According to Stone, Jawahar, and Kisamore (2010), the intention to engage in any particular behavior is influenced by three main factors: (a) attitudes toward the behavior (beliefs about a specific behavior and its consequences), (b) subjective norms (normative expectations of other people who are important to the specific behavioral actor), and (c) perceived behavioral control (ease of performing the behavior). JOURNAL OF FOOD PRODUCTS MARKETING 5 Downloaded by [Weill Cornell Medical College] at 11:45 30 July 2016 Figure 1. Traditional theory of planned behavior—Intention to purchase halal-certified products. With regard to this research, which evaluates Muslim consumer behavior toward buying halal foods and products, a modified TPB was employed. As suggested by Kurland (1995), the modified TPB comprises three elements of the original TPB with a measurement of moral obligation to predict ethical intentions. In addition, a separate component of habit is added in this TPB model. As suggested by Conner and Armitage (1998), habit, a previous behavior that has become automatic and beyond individual awareness (Bonne et al., 2007), is a significant measure of the TPB. Several studies on food-related behavior also included habit as one of the variables in measuring TPB (Bonne et al., 2007; Honkanen, Olsen, & Verplanken, 2005). Furthermore, other relevant factors are also identified, which may affect the proposed modified TPB. Among the proposed factors are demographic variables, consumer knowledge, trust toward the halal logo, and consumer level of religiosity. This study is applied to the Muslim minority in Singapore, most of whom are Malay Muslims and for whom buying products that meet religious prescriptions can be considered to be an expression of religion. Therefore, it is argued that the decision to buy halal-certified products would be significantly influenced by the individual religious identity (Bonne et al., 2007). In assessing this factor, level of religiosity is included in this framework (Husin & Rahman, 2013). By incorporating all these external factors next to the original framework of customer intention to purchase halalcertified products, the modified framework seems more suitable for halal food preferences. By using the modified TPB, in this study, we predict that Singaporean Muslim consumer intentions to buy halal foods and products depend on (1) consumers attitudes toward the halal products/foods, (2) how consumers perceive that people important to them think they should act, (3) if consumers have control over their decisions, and (4) if the consumer believes buying halal foods/products is a moral/religious obligation (Razzaque & Chaudhry, 2013; Swimberghe, Sharma, & Flurry, 2011). Thus we suggest the following hypotheses: 6 M. F. ABU-HUSSIN ET AL. H1: There is a significant and positive relationship between attitude and intention to purchase halal food products. H2: There is a significant and positive relationship between subjective norms and intentions to purchase halal food products. H3: There is a significant and positive relationship between perceived behavior control and intention to purchase halal food products. Downloaded by [Weill Cornell Medical College] at 11:45 30 July 2016 Methodology This study employed a survey that was distributed to Singaporean Muslims. The respondents were randomly selected based on nonprobability basic sampling, where the respondents did not know whether they would be selected as a sample subject. A combination of several methods for distributing the questionnaire survey was used, including through the mail and selfadministration. The survey was designed to quantitatively gauge the level of understanding of the general halal concept that contributes to Muslim purchasing decisions. A theory of planned behavior was utilized as the foundation theory in determining individual preferences toward halal purchase intention among Muslim consumers. The questions were answered using a 6-point Likert scale. The six anchors that were used in the questionnaires were (1) strongly disagree, (2) disagree, (3) fairly disagree, (4) fairly agree, (5) agree, and (6) strongly agree. Method Sample Cross-sectional data were collected by means of a structured survey in Johor Bahru and Singapore over multiple days and times of day in April–August 2014. The survey was based on an area sampling technique conducted at shopping malls, Customs, Immigration, & Quarantine (CIQ) facilities, and bus terminals in Johor Bahru. The survey was also distributed in shopping malls, mosques, and MRT stations in Singapore. Johor Bahru was selected due to its proximity to Singapore. The places selected are among the most popular areas visited by Singaporean Muslims to purchase relatively cheaper groceries and goods. In total, 432 surveys were gathered, and 332 were valid (n = 332). The remaining 100 questionnaires were not properly completed. The questionnaires were rejected based on incomplete forms (more than five measures unanswered) and similarity, contradiction, and little variance in JOURNAL OF FOOD PRODUCTS MARKETING 7 Downloaded by [Weill Cornell Medical College] at 11:45 30 July 2016 answers. Only 332 respondents were used in the analysis. All questions were self-administered, hence avoiding bias from the interviewer. Questionnaire and scaling The survey used a structured questionnaire, which was adopted from various previous validated instruments (Bonne et al., 2007; Kim, Reicks, & Sjoberg, 2003; Shaari & Mohd Arifin, 2009; Shah Alam & Mohamed Sayuti, 2011). The questionnaire survey was prepared in two languages (English and Malay); most Singaporean Muslims speak Malay, although they speak Malay as a second language while English is their primary business language. Therefore, there were no significant rejections due to language problems in this study. Items were constructed and measured according to the proposed model and components of the modified TPB. Behavioral intention was measured by asking, “I will eat halal food in the next coming days, today included,” with answers on an 8point scale (ranging from 0 to 7) (Bonne et al., 2007, 2008; Conner & Armitage, 1998). The constructs of attitude and subjective norms were assessed with measures reported by Bonne et al. (2008) and also Maria, Anne, Ulla-Kaisa Koivisto, Lars, and Per-Olow (2001). The items were modified to assure that they would be suitable for halal food preferences. For perceived behavior, the survey was divided into two parts: perceived availability (Verbeke & Vackier, 2005) and perceived price (Bonne et al., 2008; Şahin et al., 2014). The constructs of attitude (four items), subjective norms (one item), and perceived behavioral control (three items) and trust (six items; Bonne & Verbeke, 2008) were measured. Meanwhile, the construct of habit was measured by asking, “Eating halal food is something that I do without reasoning” (Bonne et al., 2007; Honkanen et al., 2005), and for trust, six items were included that asked about the credential of halal certification (Bonne & Verbeke, 2008). In this study, two halal certifications, Singapore by MUIS and Malaysia by JAKIM, were the focus. These two halal certification logos were included due to their familiarity in both countries. All the questions used a 5-point Likert scale, in which 1 indicated strongly disagree, 2 indicated disagree, 3 indicated neither agree nor disagree, 4 indicated agree, and 5 indicated strongly agree. Although the questionnaires were constructed by adopting previously validated research, they were later subjected to a pretest and validation. Without the pretest, it would be impossible to determine to what degree the respondents would understand and accept the questionnaires. The questionnaires were evaluated by a group of experts from academics and practitioners in halal-related business. A pilot test was then carried out by distributing the questionnaires at a major shopping complex in Johor Bahru to approximately 30 respondents. Feedback from the pilot test was then evaluated, and several changes were made to the original questionnaire to assure that it was reliable for the study. 8 M. F. ABU-HUSSIN ET AL. Downloaded by [Weill Cornell Medical College] at 11:45 30 July 2016 Method of analysis Data from the survey were then edited and coded using SPSS version 18.0. The internal reliability consistency of the multi-item TPB concepts was assessed using Cronbach’s alpha, mean scores, and standard deviations of all variables. Further, the analysis included independent samples t tests for comparison of means, linear correlations, and multiple regressions to examine the determinants of halal food consumption among the Muslim minority in Singapore. Results Reliability and multicollinearity tests The internal reliability of the items was verified by computing Cronbach’s alpha (Nunnally, 1978). Cronbach’s alpha for attitude was 0.828, perceived behavioral control was 0.723, behavioral intention scale was 0.771, and trust was 0.842. Subjective norms and habit were measured using single items. Because the results from the reliability test showed that the Cronbach’s alpha values for the measured variables were all much higher than 0.65, the constructs were deemed to have adequate reliability. As suggested by Nunnally (1978), a minimum alpha of 0.6 is considered acceptable for early stages of research. Others suggested a higher cutoff, such as 0.7 and 0.8, for cognitive tests (Kline, 2000) and ability tests (Field, 2005), respectively. Because the Cronbach’s alpha values for the measured variables in this study were more than 0.7, the items were accepted as instruments for the respective variables. To determine the presence of multicollinearity among independent variables in this study, two major methods were used. First, the measured independent variables were tested by calculating both the tolerance test and variation inflation factor (VIF) (Field, 2005). The results for both analyses are presented in Table 1. The results indicate the following: (1) None of the tolerance levels is ≤ 0.01 (2) All VIF values are well below 10. Thus the measures selected for assessing the independent variables in this study do did not have multicollinearity problems. Characteristics of the respondents The characteristics of the respondents in this study are presented in Table 2. It shows that respondents who completed this survey were mainly women, who Table 1. Test of collinearity. ATT-Attitude SN-Subjective Norm PBC-Perceived Behavioral Control Tolerance .648 .819 .723 VIF 1.543 1.221 1.382 JOURNAL OF FOOD PRODUCTS MARKETING 9 Downloaded by [Weill Cornell Medical College] at 11:45 30 July 2016 Table 2. Demographic characteristics of the sample (n = 332) in percentages. Item Gender Male Female Age 18–25 26–35 36–45 46–55 56–65 66 and more Level of Education Primary Secondary Polytechnic Junior College University Graduate Postgraduate Others Household monthly net income < S$ 1,000 S$ 1,000—S$ 1,999 S$ 2,000—S$ 2,999 S$ 3,000—S$ 3,999 S$ 4,000—S$ 4,999 S$ 5,000—S$ 5,999 > S$6,000 Percentage 47% 53% 34.3% 14.5 % 16.9% 16.6% 12.3% 5.4% 7.2% 39.8% 15.7% 10.5% 15.1% 3.0% 8.7% 13.9% 19.3% 30.1% 11.1% 9.3% 5.1% 7.2% comprised 53%, slightly higher than the proportion of males (47%). According to the CIA World Factbook (2015), the proportion of men in Singapore is slightly lower than women, with a ratio of 0.96 male(s)/female. Thus the sample contains a representative sample of gender in Singapore. With regard to age, the majority of our sample consisted of younger respondents (48.8% were 35 years and below), while 33.5% were middle-aged (36–55 years). Respondents were mainly literate and benefited from higher education; 44.3% of them held at legast a polytechnic certificate. The majority (74.4%) of respondents come from low-middle income earners (below S$4000). Determinants of behavioral intention—Hypothesis testing In this study, multiple regression analysis was used to evaluate the hypothesis testing. The three proposed relationships were tested, and the results are presented in Table 3. In this study, three hypotheses were formulated to assess the strength of the relationship between intention to purchase halalcertified products and three dependent variables (attitude, subjective norms, and perceived behavioral control). No single variable was removed after testing reliability, and the hypotheses were tested using a multiple regression model. For the total sample, attitude toward halal food purchasing, subjective norms, and perceived control were significant predictors of intention. The 10 M. F. ABU-HUSSIN ET AL. Table 3. Regression results. β Constant ATT-Attitude SN-Subjective Norm PBC-Perceived Behavioral Control .461 .254 .217 t-Value 3.257 10.098 6.248 5.015 p-value .001** .000** .000** .000** Downloaded by [Weill Cornell Medical College] at 11:45 30 July 2016 Notes. Significance at: *p < 0.001; R2 = 0.557, adjusted R2 = .553; dependent variable: intention to purchase halal-certified products. regression result is shown in Table 3. The analysis reveals that the three hypotheses are accepted and significant, that is, the relationship between attitude (β = 0.461 and p, 0.000), subjective norms on halal-certified products purchase intention (β = 0.254 and p, 0.000), and perceived behavioral control on halal-certified products purchase intention (β = 0.217 and p, 0.001). Discussion The focus of this study was on investigating customer behavior pertaining to the purchase intention toward halal-certified products. A regression analysis was used to predict the “intention to purchase halal-certified products” as the dependent variable; the independent variables were (a) attitude, (b) subjective norms, and (c) perceived behavioral control. Using the TPB as the framework, this study shows that the theory of planned behavior could explain 56% of the variance in the intention to purchase halal-certified products among the Muslim minority in Singapore. In general, halal purchase intention could be determined by a positive attitude, subjective norms, and perceived control. The TPB model used in this study was also found to be statistically significant. The findings from this analysis suggest that the TPB is a robust model in explaining the purchase intention of halal-certified products, as suggested by Shah Alam and Mohamed Sayuti (2011). Few other studies have also successfully utilized the TPB as a theoretical framework from which to examine halal purchase intention (Bonne et al., 2007; Bonne & Verbeke, 2008; Tieman et al., 2013). Attitude as the first selected TPB variable was able to explain 46% of the variance in the intention to purchase halal-certified products (β = 0.461; t = 10.098; p < 0.001). Subjective norms was able to explain 25% of the variance in the intention to purchase halal-certified products (β = 0.254; t = 6.248; p < 0.001). Perceived behavioral control was able to explain 21% of the variance in the intention to purchase halal-certified products (β = 0.217; t = 5.01; p < 0.001). Thus all variables have a significant relationship with the intention to purchase halal-certified products, with the highest level of variance being attitude, followed by subject norms and perceived behavioral control. JOURNAL OF FOOD PRODUCTS MARKETING 11 Downloaded by [Weill Cornell Medical College] at 11:45 30 July 2016 Conclusion This study found a significant relationship between the studied variables according to three main hypotheses: (a) the relationship between attitude and intention to purchase halal food products, (b) the relationship between subjective norms and intention to purchase halal food products, and (c) the relationship between perceived behavior control and intention to purchase halal food products. The findings from this study also indicate that these three components of the TPB are the determinant factors of halal-certified product purchase intention, as suggested by previous studies (Bonne et al., 2007; Bonne & Verbeke, 2008; Khalek, 2014; Lada, Harvey Tanakinjal, & Amin, 2009; Shah Alam & Mohamed Sayuti, 2011; Tieman et al., 2013). This study successfully revealed the dimension of halal purchase intention by using the traditional TPB among the Muslim minority in Singapore. It is suggested that future research should focus on the mediating factors of halal purchase intention as well as the roles of culture and religious identity in this interesting community. ORCID Mohd Fauzi Abu–Hussin http://orcid.org/0000-0003-4340-4710 Fuadah Johari http://orcid.org/0000-0003-3264-0742 References A Guide to Food Labelling and Advertisements. (2015). Agri-food and Veterinary, Authority of Singapore. 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