Construction of a Downdraft Biomass Gasifier. Journal of Mechanical Engineering, [S. l.], v. 37, p. 71–73, 2008. DOI: 10.3329/jme.v37i0.830. Disponível em: https://www.banglajol.info/index.php/JME/article/view/830. Acesso em: 25 jun. 2026.