BAKRI, Suriyanto; JEFRI, J; WIDODO, Sri. Coal Quality Analysis Based on Proximate and Ultimate Test Results in Massenreng Pulu Village, Lamuru District, Bone Regency. Journal of Geology and Exploration, [S. l.], v. 1, n. 2, p. 36–40, 2022. DOI: 10.58227/jge.v1i2.7. Disponível em: https://ejournal.insightpublisher.com/index.php/JGE/article/view/7. Acesso em: 28 oct. 2025.