WATTANA, A.; WATANAWANYOO, P.; NIRUKKANAPORN, S. A study on thermal efficiency of downdraft gasifier (swirl air type). Journal of Current Science and Technology, [S. l.], v. 10, n. 2, p. 203–215, 2020. Disponível em: https://ph04.tci-thaijo.org/index.php/JCST/article/view/397. Acesso em: 27 aug. 2026.