The Production of Briquette Charcoal from Coconut Shell and Palm Shell as A Renewable Energy Source. International Journal Of Technical Vocational And Engineering Technology, [S. l.], v. 4, n. 1, p. 1–12, 2023. Disponível em: https://journal.pktm.com.my/index.php/ijtvet/article/view/94. Acesso em: 3 apr. 2025.