Kurniawan, Kurniawan, Yusuf Iskandar, and Agung Zulfikri. “Marketing Analysis Identify Internal and External Factors of Coffee Products (Mountain Karamat Village, Sukabumi District)”. West Science Business and Management 1, no. 01 (January 31, 2023): 37–41. Accessed November 23, 2024. https://wsj.westscience-press.com/index.php/wsbm/article/view/21.