Roy, B. J., N. K. Singha, S. H. Ali, M. G. Rahman, and M. F. Alam. “Status of Vulnerable Leopard Whip Ray (Himantura Undulata) at Two Landing Centres of Chittagong and Cox’s Bazar, Bangladesh”. Bangladesh Journal of Zoology, vol. 42, no. 1, May 2015, pp. 11-17, doi:10.3329/bjz.v42i1.23332.