Project methodology of a biogas production unit. Case study in Angola. Society & Technology, [S. l.], v. 5, n. 1, p. 43–56, 2021. DOI: 10.51247/st.v5i1.188. Disponível em: https://institutojubones.edu.ec/ojs/index.php/societec/article/view/188. Acesso em: 15 sep. 2026.