Introducing retort for making charcoal from coconut shells. Dharmakayana, [S. l.], v. 1, n. 2, p. 61–67, 2024. DOI: 10.33369/dk.v1i2.38913. Disponível em: https://ejournal.unib.ac.id/dharmakayana/article/view/38913. Acesso em: 27 jul. 2025.