Hashmi, Durdana Rais, and Muhammad Ishaq Qaim Khani. “?ENVIRONMENTAL IMPACT ASSESSMENT OF AIR POLLUTION IN DIFFERENT AREAS OF KARACHI”. Biological Sciences - PJSIR 46, no. 6 (December 22, 2003): 399–405. Accessed November 22, 2024. https://v2.pjsir.org/index.php/biological-sciences/article/view/1682.