"Heavy Metals Contamination in Soil and Water Samples in Omo Forest Reserve, Nigeria". African Journal of Biomedical Research 22, no. 2 (مايو 31, 2019): 207–214. تاريخ الوصول يونيو 6, 2026. https://ojshostng.com/index.php/ajbr/article/view/2263.