Khatoon, Z., and S. M. Hussain. “?OCCURRENCE OF FISH EGGS (FAMILIES: ENGRAULIDAE AND CARA GIDAE) IN THE BACKW ATER OF KARACHI HARBOUR”. Biological Sciences - PJSIR, vol. 41, no. 5, Oct. 1998, pp. 256-9, https://v2.pjsir.org/index.php/biological-sciences/article/view/2285.