SITI KHAIRANI SINAGA, Siti Khairani; MASTHURA; LUBIS, Ridwan Yusuf. BIOGAS SYNTHESIS OF COW DUNG WASTE THROUGH FERMENTATION TIME VARIATION PROCESS. EINSTEIN (e-Journal), [S. l.], v. 13, n. 1, p. 38–41, 2025. DOI: 10.24114/eins.v13i1.56402. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/einsten/article/view/56402. Acesso em: 12 oct. 2025.