Optimization and fabrication of a portable biogas reactor. Journal of Chemical Engineering, [S. l.], v. 27, n. 2, p. 36–40, 2014. DOI: 10.3329/jce.v27i2.17799. Disponível em: https://www.banglajol.info/index.php/JCE/article/view/17799. Acesso em: 26 jun. 2026.