“Antioxidant Activity, Total Phenolic, Flavonoid, and Caffeine Contents of Robusta Coffee (Coffea Canephora) Fermented With Lactic Acid Bacteria”. Menara Perkebunan 93, no. 1 (May 5, 2025): 21–30. Accessed August 27, 2026. https://mp.iribb.org/index.php/mpjurnal/article/view/604.