INVESTIGATION OF THE EFFECTS OF STARTING pH, MASS AND RETENTION TIME ON BIOGAS PRODUCTION USING POULTRY DROPPINGS AS FEEDSTOCK. Nigerian Journal of Technology, [S. l.], v. 39, n. 1, p. 203–211, 2020. Disponível em: https://www.nijotech.com/index.php/nijotech/article/view/2238. Acesso em: 23 apr. 2026.