Rahman, M. M., and M. M. Hassan. “The Amount of Selected Heavy Metals in Water, Sediments and Fish Species from the Rupsha River, Khulna, Bangladesh”. Asian Journal of Fisheries and Aquatic Research, Vol. 6, no. 2, Apr. 2020, pp. 1-9, doi:10.9734/ajfar/2020/v6i230091.