Firmansyah, Idham, Cakti Indra Gunawan, and Dyanasari. “Comparison Of The Robusta Coffee Trade Value Chain In The Pakel And Kenongo Village Farmer Groups, Gucialit Sub-District, Lumajang Regency ”. IRDH International Journal of Technology, Agriculture and Natural Sciences 2, no. 2 (July 21, 2025): 85–96. Accessed April 17, 2026. https://irdhjournals.com/ijtans/article/view/807.