ลวณะสกล ศ. Wood Charcoal Gasifier Engine Alternative Energy. Frontiers in Engineering Innovation Research, [S. l.], v. 8, p. 24–27, 2006. Disponível em: https://ph01.tci-thaijo.org/index.php/jermutt/article/view/242256. Acesso em: 16 sep. 2026.