Mashiatullah, A., R. M. Qureshi, T. Javed, N. Ahmad, and F. Khalid. “PHYSICO - CHEMICAL AND BIOLOGICAL WATER QUALITY OF KARACHI COASTAL WATER”. The Nucleus, vol. 46, no. 1-2, June 2020, pp. 53-59, http://www.thenucleuspak.org.pk/index.php/Nucleus/article/view/977.