IMRAN, M.; ALI, N.; MASOOD, H. M.; ASHRAF, M.; ALI, W. Experimental study of coal washability using float and sink test. Journal of the Pakistan Institute of Chemical Engineers, [S. l.], v. 49, n. 1, p. 73–79, 2021. DOI: 10.54693/piche.04918. Disponível em: http://piche.org.pk/journal/index.php/jpiche/article/view/466. Acesso em: 27 apr. 2024.