Ibnu, Muhammad, and Lina Marlina. “Sustainability Standards and Certification Dan Pathway Menuju Produksi Kopi Berkelanjutan Di Indonesia”. Suluh Pembangunan : Journal of Extension and Development 1, no. 2 (December 27, 2019): 97-108. Accessed September 24, 2025. http://jsp.fp.unila.ac.id/index.php/jsp/article/view/21.