Nnenna, Ekwe-Testimony, et al. “An Investigation of Nwangene River Pollution in Onitsha, Anambra State, Southeastern Nigeria: Causes, Effects, and Preventive and Remedial Approaches”. The Asian Review of Civil Engineering, vol. 14, no. 1, Feb. 2025, pp. 9-19, doi:10.70112/tarce-2025.14.1.4257.