OKWELLE, PEACE L, and ABIYE C MARCUS. 2020. “DISTRIBUTION OF HEAVY METALS IN SOIL FROM SELECTED DUMPSITES IN PORT HARCOURT METROPOLIS, RIVERS STATE, NIGERIA”. Journal of Global Ecology and Environment 9 (3), 101-6. https://www.ikpresse.com/index.php/JOGEE/article/view/4909.