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?COMPOSITION, ORIGIN AND ECONOMIC POTENTIAL OF KAKUL, LAGARBAN AND TARNAWAI PHOSPHORITE DEPOSITS OF HAZARA, PAKISTAN*. Pakistan Journal of Scientific & Industrial Research. 1997;40(1-4):6-11. Accessed March 10, 2026. https://www.v2.pjsir.org/index.php/biological-sciences/article/view/2311