hendra, jekvy, ., W., Soekarno, B.P.W., Bintoro, H.M.H., Manohara, D. and ., S. 2014. 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, 2 (Oct. 2014), 308–320.