Wanra Tarigan; Thamrin Thamrin; Lismardiana Sembiring; Iswanto Sembiring; Harlen Silalahi; Tulus Pramita Sihaloho. FP_Tree ASSOCIATION RULE MINING ECOMMERCE PRODUCT ADVERTISING EFFORTS TO IMPROVE PRODUCT BRAND SALES STRATEGY TO SUPPORT ECOMMERCE BUSINESS IN INDONESIA. IJSS 2021, 1, 225-232.