KUMAR, K. A.; PINTO, P.; HAWALDAR, I. T.; KUMAR, B. P. Biogas from Cattle Dung as a Source of Sustainable Energy: A Feasibility Study. International Journal of Energy Economics and Policy, [S. l.], v. 10, n. 6, p. 370–375, 2020. Disponível em: https://www.econjournals.com/index.php/ijeep/article/view/10135. Acesso em: 30 apr. 2024.