Igwe, C. E., Nzegbule, E. C., Azorji, J. N., & Okafor, T. A. (2016). Assessment of Heavy Metal Levels in the Soils of Ohyia Kaolin Mining Site and Screening of Three Local Herbaceous Species for Use in Phytoremediation. The International Journal of Science & Technoledge, 4(8). Retrieved from http://internationaljournalcorner.com/index.php/theijst/article/view/123956