Tarigan, Antariksa. “The Role of Word of Mouth and Electronic Word of Mouth in the Consumer Purchase Decision Process of Kopi Tuku (A Case Study of Consumers in Jabodetabek) ”. Proceeding Economy of Asia International Conference 2025, no. 1 (February 14, 2026): 1351–1357. Accessed February 16, 2026. https://conference.asia.ac.id/index.php/ecosia/article/view/318.