HUSAIN V, KHAN H, HUSAIN M, BILQEES R. ?COMPOSITION, ORIGIN AND ECONOMIC POTENTIAL OF KAKUL, LAGARBAN AND TARNAWAI PHOSPHORITE DEPOSITS OF HAZARA, PAKISTAN*. Pakistan Journal of Scientific & Industrial Research [Internet]. 1997 Apr. 21 [cited 2024 Jul. 22];40(1-4):6-11. Available from: https://v2.pjsir.org/index.php/biological-sciences/article/view/2311