« AUTO-PURIFICATION RESPONSE OF ONA RIVER, IBADAN TO INDUSTRIAL AND DOMESTIC EFFLUENT DISCHARGE ». FULafia Journal of Science and Technology 4, no. 2 (novembre 15, 2023): 74–78. Consulté le mai 17, 2026. https://lafiascijournals.org.ng/index.php/fjst/article/view/103.