SINGH, K. M. P.; UJALA, P. K.; SINHA, K. M. K.; GOURI CHARAN, T. Studies on the Characterization of Indian Coals Using FE-SEM and EDS and its Relevance to Coal Washability. Journal of Mines, Metals and Fuels, [S. l.], v. 66, n. 7, p. 397–404, 2022. Disponível em: https://informaticsjournals.com/index.php/jmmf/article/view/31727. Acesso em: 2 may. 2024.