KHAN, I. H., FAYYAZ MAHMOOD, MUSTANSAR NAEEM, and WAZIR MOHAMMED. “?PROCESSING OF EMERALD BEARING ROCKS OF GUJAR KILLI EMERALD MINE BY WASHING AND SCREENING”. Biological Sciences - PJSIR 37, no. 4 (March 21, 1994): 167–170. Accessed July 3, 2024. https://v2.pjsir.org/index.php/biological-sciences/article/view/2627.