“Which One Is Important? Halal Labeling Or Viral Marketing (Case Study of Medan City Kopi Kenangan Consumers)”. International Journal of Management Research & Practice 1, no. 02 (January 2, 2025): 114–120. Accessed April 18, 2026. https://ejournal.genungmentorshipgroup.com/index.php/ijmrp/article/view/40.