IQBAL, M. ZAFAR, and MUHAMMAD SHAFIQ. “?EFFECT OF CEMENT DUST POLLUTION ON THE GROWTH OF SOME TREE SPECIES”. Biological Sciences - PJSIR 38, no. 9-10 (October 23, 1995): 368–370. Accessed November 22, 2024. http://v2.pjsir.org/index.php/biological-sciences/article/view/2523.