KHAN, I. H.; MAHMOOD, F.; NAEEM, M. CHEMICAL, MINERALOGICA L CHARACTERIZATION A ND LIBERATION STUDIES OF KOH-I-SULTAN SULPHUR. Biological Sciences - PJSIR, [S. l.], v. 44, n. 2, p. 72–74, 2001. Disponível em: https://v2.pjsir.org/index.php/biological-sciences/article/view/1880. Acesso em: 22 jul. 2024.