Assessment of the Effect of Co-Digestion of Chicken Dropping and Cow Dung on Biogas Generation. Global Journal of Science Frontier Research, [S. l.], v. 12, n. A7, p. 31–36, 2012. Disponível em: https://journalofscience.org/index.php/GJSFR/article/view/409. Acesso em: 24 sep. 2026.