Begum, R. A., D. T. Rahman, M. A. Rashid, M. S. Alam, and R. M. Shahjahan. “Comparison of Esterase Isozyme Variability in Some Selected Tissues of the Asian and African Catfishes (Siluriformes: Clariidae)”. Bangladesh Journal of Zoology, vol. 40, no. 1, Dec. 2012, pp. 43-50, doi:10.3329/bjz.v40i1.12893.