SOCIAL COHESIVENESS OF LOCAL COMMUNITIES (A STUDY OF SAGO-BASED FOOD DERIVATION IN MERANTI ISLANDS DISTRICT) By: Regita Rahmadhani A [email protected] Advisor: Yusmar Yusuf [email protected] Department of Sosiology Faculty of Social and Political Sciences University of Riau The campus of Bina Widya HR. Soebrantas Street Simpang Baru Km. 12.5 Pekanbā¦