KHAN, I. H.; MAHMOOD, F.; NAEEM, M.; MOHAMMED, W. ?PROCESSING OF EMERALD BEARING ROCKS OF GUJAR KILLI EMERALD MINE BY WASHING AND SCREENING. Biological Sciences - PJSIR, [S. l.], v. 37, n. 4, p. 167–170, 1994. Disponível em: https://v2.pjsir.org/index.php/biological-sciences/article/view/2627. Acesso em: 3 jul. 2024.