P. H. Bukar, M. O. A. Oladipo, I. G. E. Ibeanu, and I. Y. Zakari, “Assessment and Distribution of Metal Pollutants in Fadama Soils along River Ngadda and Alau Dam in Maiduguri, Borno State, Nigeria”, aast-v1, pp. 150-162, Jun. 2019.