Bhuiyan, AS, S Akhter, and MMA Quddus. 2011. “Diurnal Vertical Migration of Some Cladocerans in Relation to the Physico-Chemical Factors in a Fish Pond”. Dhaka University Journal of Biological Sciences 20 (2):147-54. https://doi.org/10.3329/dujbs.v20i2.8975.