PREECHA KIATGRAJAI. Properties of Charcoal Briquettes from Sawdust and Rice Hull Chars. Agriculture and Natural Resources, Bangkok, Thailand, v. 23, n. 4, p. 385–395, 1989. Disponível em: https://li01.tci-thaijo.org/index.php/anres/article/view/242320. Acesso em: 18 sep. 2026.