Olaifa, FE, AK Olaifa, and TE Onwude. 2010. “Lethal and Sub-Lethal Effects of Copper to the African Catfish (<i>clarias gariepinus</I>) Juveniles”. African Journal of Biomedical Research 7 (2). https://doi.org/10.4314/ajbr.v7i2.54071.