hendra, jekvy, Widodo ., Bonny Poernomo Wahyu Soekarno, H. Moch Hasyim Bintoro, Diah Manohara, and Surono . “Utilization of Coffee Waste Compost Enriched by Bioactivator to Suppress Basal Stem Rot Disease on Black Pepper”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 17, no. 2 (October 29, 2014): 308–320. Accessed September 17, 2025. https://gssrr.org/JournalOfBasicAndApplied/article/view/3028.