Yurika RahayuYurika Rahayu, SumarwanUjang, and AsnawiYudha Heryawan. “Perception Analysis of Purchasing Attitude And Willingness To Pay For Coffee and Non-Coffee Beverage Products ”. Jurnal Manajemen & Agribisnis 20, no. 3 (November 28, 2023): 455. Accessed May 9, 2024. https://journal.ipb.ac.id/index.php/jmagr/article/view/50828.