?STUDIES ON THE LEACHING OF COPPER FROM COMPLEX COPPER ORES OF CHITRAL. Biological Sciences - PJSIR, [S. l.], v. 41, n. 3, p. 140–144, 1998. Disponível em: https://www.v2.pjsir.org/index.php/biological-sciences/article/view/2255. Acesso em: 10 mar. 2026.