AFRIAN, Chandra; HARYANTO, Agus; HASANUDIN, Udin; ZULKARNAIN, Iskandar. PRODUKSI BIOGAS DARI CAMPURAN KOTORAN SAPI DENGAN RUMPUT GAJAH (Pennisetum Purpureum). Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering), [S. l.], v. 6, n. 1, 2017. Disponível em: https://jtep.fp.unila.ac.id/index.php/JTP/article/view/1325. Acesso em: 9 jul. 2026.