Ody Gunawan, Nur Aida, and Sri Nengsih. “PENGARUH TEMPERATUR CAMPURAN LIMBAH CAIR TAHU LIMBAH ROTI DAN FESES SAPI TERHADAP HASIL BIOGAS”. Lingkar: Journal of Environmental Engineering 3, no. 2 (January 2, 2023): 26–43. Accessed August 10, 2025. https://journal.ar-raniry.ac.id/index.php/lingkar/article/view/2310.