Sampling and Analysis of Coal with Thermal and Chemical Methods for Quality Control Evaluation . International Journal of Innovative Research in Engineering & Management, [S. l.], v. 9, n. 2, p. 488–495, 2022. Disponível em: https://acspublisher.com/journals/index.php/ijirem/article/view/11097. Acesso em: 25 aug. 2024.