Fadel, I., Madrini, I. A. G. B. and Sumiyati, S. (2026) “The Effect of Addition EM-4 (Effective Microorganism 4) On the Quality of Elephant Dung Compost ”, Jurnal BETA (Biosistem dan Teknik Pertanian), 9(1), pp. 130–137. doi: 10.24843/JBETA.2021.v09.i01.p14.