KOMHOM, S. Properties of Charcoal Briquettes from Charcoal Scraps Mixed with Spent Coffee Grounds as An Alternative Fuel . Journal of Advanced Development in Engineering and Science, Babgkok, Thailand, v. 14, n. 41, p. 62–80, 2024. Disponível em: https://ph03.tci-thaijo.org/index.php/pitjournal/article/view/1197. Acesso em: 15 sep. 2026.