Sarauta, A., A. Sabo, I. A. Abdulhamed, and Y. O. Yusuf. “Assessment of Persistent Organic Pollutants in Water Samples from River Challawa in Kano, Nigeria”. World Journal of Environmental Research 5, no. 2 (December 31, 2015): 159–177. Accessed November 23, 2024. https://un-pub.eu/ojs/index.php/wjer/article/view/163.