“Diurnal Vertical Migration of Some Cladocerans in Relation to the Physico-Chemical Factors in a Fish Pond”. Dhaka University Journal of Biological Sciences 20, no. 2 (November 21, 2011): 147–154. Accessed June 30, 2026. https://banglajol.info/index.php/DUJBS/article/view/8975.