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PETROMINERALOGICAL AND GEOCHEMICAL STUDIES OF HAVELIAN BARITE, HAZARA, NWFP, PAKISTAN. Pakistan Journal of Scientific & Industrial Research [Internet]. 2022 Jun. 9 [cited 2026 Mar. 11];37(10):414-20. Available from: https://www.v2.pjsir.org/index.php/biological-sciences/article/view/2733