«Heavy Metal Contamination of African Cat Fish (Clarias gariepinus) from Industrial Effluent and Domestic Waste-contaminated Rivers and Home bred sources in Zaria, Nigeria», AJBR, bd. 23, nr. 1, s. 101–105, jan. 2020, åpnet: 5. april 2026. [Online]. Tilgjengelig på: https://www.ojshostng.com/index.php/ajbr/article/view/874