Gulo D, Bate’e MM. Online Community Marketing Strategies for Building Customer Loyalty at UD. Surya in Gunungsitoli City. AMAR [Internet]. 2025 Oct. 25 [cited 2026 Mar. 29];5(2):1092-9. Available from: https://ojs.stieamkop.ac.id/index.php/amar/article/view/2966