Putra, D. P., Widyowanti, R. A., Renjani, R. A., & Krisdiarto, A. W. (2026). Decomposition of Palm Oil Waste using Vermicompost Method. Jurnal BETA (Biosistem Dan Teknik Pertanian), 9(1), 106–112. https://doi.org/10.24843/JBETA.2021.v09.i01.p11