& G. Olorede, S.K. Balogun, J.I. Osuh. “Effects of Separate and Combined Chronic Ingestion of Tramadol and Codeine on Aggressive Behaviour Among Female Albino Rats”. Covenant International journal of Psychology 5, no. 1 (June 30, 2020). Accessed April 27, 2024. https://journals.covenantuniversity.edu.ng/index.php/cijp/article/view/2100.