MERLIN MMM, MYSTICA AR. A COMBINATION OF GREY RELATIONAL ANALYSIS AND MINIMIZATION OF REGRET METHOD IN INTERVAL-VALUED INTUITIONISTIC FUZZY SET: CASE STUDY IN SELECTION PROCESS OF SALES ON MANGO-BASED BEVERAGES. IJMA. 2018;9(1). Accessed May 19, 2026. http://www.ijma.info/index.php/ijma/article/view/5303