“?FLOTATION CHARACTERISTICS OF LEAD-ZINC ORE FROM BESHAM, DISTRICT SWAT, NWFP, PAKISTAN” (2000) Biological Sciences - PJSIR, 43(5), pp. 319–323. Available at: https://www.v2.pjsir.org/index.php/biological-sciences/article/view/2059 (Accessed: 10 March 2026).