I Made Kariyana. “IMPLEMENTASI SISTEM BIOGAS DARI KOTORAN HEWAN TERNAK SEBAGAI BAHAN BAKAR ALTERNATIF”. JURNAL PENGABDIAN MANDIRI 1, no. 12 (December 23, 2022): 2335–2342. Accessed July 6, 2025. https://mail.bajangjournal.com/index.php/JPM/article/view/4377.