THE INFLUENCE OF RELATIONSHIP MARKETING AND PRODUCT DIVERSITY ON CONSUMER LOYALTY AT PM COLLECTION PEKANBARU By : Siti Purnama Email: [email protected] Supervisor : Dr. Meyzi Heriyanto, S.Sos.M.si Business Adminisration Study Program, Depatement Of Administrative Science. Fakulty Of Social and Political Science. Riau University. Pekanbaru. Indonesia Bina Widya Campus Jl…