Omotunde, E. E., and A. J. Odunayo. “Influence of Age on Adolescents’ Self Concept Among Secondary School Students in Ikpoba-Okha Local Government Area of Edo State, Nigeria”. The International Journal of Humanities & Social Studies, vol. 5, no. 10, Oct. 2017, https://internationaljournalcorner.com/index.php/theijhss/article/view/125546.