Bawa, D. , Ribah, M. , Jega, I. , Oyedepo, V. (2017), 'Heavy Metal Concentration in Gills and Bones of Tilapia (Oreochromis niloticus) from Jega River, Kebbi State, Nigeria', World Academy of Science, Engineering and Technology, Open Science Index 132, International Journal of Agricultural and Biosystems Engineering, 11(12), 841 - 844.