Ezekwe, Clinton Ifeanyichukwu, and Israel Clinton Utong. “Hydrocarbon Pollution and Potential Ecological Risk of Heavy Metals in the Sediments of the Oturuba Creek, Niger Delta, Nigeria”. Journal of Environmental Geography 10, no. 1-2 (August 5, 2017): 1–10. Accessed December 19, 2024. https://ojs.bibl.u-szeged.hu/index.php/jengeo/article/view/43800.