Handayani, Rizka. “EFFECT OF FERMENTATION DURATION ON CAFEIN CURRENCY IN ROBUSTA COFFEE (Coffea Canephora) FROM PTPN XII JEMBER”. Indonesian Pharmacopeia Journal 1, no. 1 (January 25, 2024): 26–31. Accessed August 2, 2025. https://ipj.uds.ac.id/ipj/article/view/6.