TABLEOFCONTENTS APPROVALPAGE i i LEGALI ZATI ON i i i DECLARATI ONOFOWNERSHI P i v ABSTRACT v ABSTRAK v i PREFACE v i i ACKNOWLEDGEMENT v i i i TABLEOFCONTENTS i x LI STOFFI GURES xi LI STOFTABLES xi i CHAPTERII NTRODUCTI ON 1 1. 1 Backgr oundofResear ch 1 1. 2 St at ement sofPr obl em 4 1. 3 Resear chObj ect i v es 5 1. 4 Resear chSi gni f i cances 5 1. 5 Def i ni t i onofKeyTer ms 6 1. 6 Pr ev i ousSt udi es 7 CHAPTERI ITHEORETI CALFRAMEWORK 10 2. 1 Di scour se 10 2. 2 Di scour seAnal y si s 12 2. 3 Cohesi on 13 2. 4 Cohesi v eDev i ces 14 2. 5 Gr ammat i cal Cohesi on 15 2. 5. 1 Ref er ence 15 2. 5. 2 Subst i t ut i on 23 2. 5. 3 El l i psi s 25 2. 5. 4 Conj unct i on 28 i x 2. 6 Topi c 33 2. 7 Ar t i cl e19 35 CHAPTERI I IRESEARCHMETHOD 37 3. 1 Resear chDesi gn 37 3. 2 Sampl eofDat a 38 3. 3 Sour ceofDat a 43 3. 4 Techni queofCol l ect i ngDat a 43 3. 5 Techni queofAnal y zi ngDat a 45 3. 6 Or gani zat i onsofWr i t i ng 46 CHAPTERI VFI NDI NGSANDDI SCUSSI ONS 48 4. 1 Fi ndi ngs 48 4. 1. 1 Gr ammat i cal Cohesi onDev i cesEmpl oy edi nVi r alLi es: Mi si nf or mat i onandt heCor onav i r usAr t i cl e 49 4. 1. 2 HowGr ammat i cal Cohesi onDev i cesBui l dt het opi cofVi r alLi es: Mi si nf or mat i onandt heCor onav i r usAr t i cl e 113 4. 2 Di scussi ons 121 4. 2. 1 Gr ammat i cal Cohesi onDev i cesEmpl oy edi nVi r alLi es: Mi si nf or mat i onandt heCor onav i r usAr t i cl e 121 4. 2. 2 HowGr ammat i cal Cohesi onDev i cesBui l dt het opi cofVi r alLi es: Mi si nf or mat i onandt heCor onav i r usAr t i cl e 124 CHAPTERVCONCLUSI ONSANDSUGGESTI ONS 127 5. 1 Concl usi ons 127 5. 2 Suggest i ons 128 REFERENCES 130 x