Bhuiyan, A., S. Akhter, and M. Quddus. “Diurnal Vertical Migration of Some Cladocerans in Relation to the Physico-Chemical Factors in a Fish Pond”. Dhaka University Journal of Biological Sciences, vol. 20, no. 2, Nov. 2011, pp. 147-54, doi:10.3329/dujbs.v20i2.8975.