Adnan, Adnan, Alwin Teniro, and Zainudin - Zainudin. “Competitiveness of the Commodity Indonesian Coffee Beans the International Market”. Jurnal Manajemen (Edisi Elektronik) 13, no. 3 (October 1, 2022): 329–342. Accessed May 3, 2024. https://ejournal.uika-bogor.ac.id/index.php/manajemen/article/view/7104.