MOHSIN, S. I., G. HAMID, and A. ZUBAIR. “?ENGINEERING PROPERTIES OF SOIL LAYERS OF KARACHI”. Biological Sciences - PJSIR, vol. 38, no. 9-10, Oct. 1995, pp. 384-90, https://v2.pjsir.org/index.php/biological-sciences/article/view/2527.