SANJAYA, D. BIOGAS PRODUCTION FROM A MIXTURE OF COW MANURE WITH CHICKEN MANURE. Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering), [S. l.], v. 4, n. 2, 2015. Disponível em: https://jurnal.fp.unila.ac.id/index.php/JTP/article/view/827. Acesso em: 26 nov. 2025.