“?PHYSICO-CHEMICAL STUDIES OF EFFLUENTS_AND EMISSIONS OF GHEEIEDIBLE OIL INDUSTRIES IN PAKISTAN”, Pakistan Journal of Scientific & Industrial Research, vol. 42, no. 3, pp. 121–125, Jun. 1999, Accessed: Mar. 10, 2026. [Online]. Available: https://www.v2.pjsir.org/index.php/biological-sciences/article/view/2129