«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, т. 23, вып. 1, сс. 101–105, янв. 2020, просмотрено: 6 апрель 2026 г. [онлайн]. доступно на: https://ojshostng.com/index.php/ajbr/article/view/874