"Point-Effluent Discharge and River Recovery Potential: An Assessment of Spatio-Temporal Distribution of Heavy Metals in Water and Sediment from Upper Ogun River, Southwest-Nigeria". African Journal of Biomedical Research, م 25, عدد 1, يناير، 2022, ص 65-72, https://ojshostng.com/index.php/ajbr/article/view/2340.