Bulkis, Ratu, Dra. Noermijati, and Astrid Puspaningrum. “Purchasing Decisions of Coffee in the Pesen Kopi: A Consumer Behavior Approach”. The International Journal of Business & Management 9, no. 6 (June 30, 2021). Accessed May 14, 2024. https://www.internationaljournalcorner.com/index.php/theijbm/article/view/165123.