Otobo, Janet Tivere, and Samuel Oroghenemudiake Ukutegbe. “Effectiveness of Discovery, Discussion and Lecture Methods of Teaching Social Studies in Delta State Primary Schools, Nigeria”. African Journal of Educational Management 26, no. 1 (June 19, 2025): 181–203. Accessed April 18, 2026. https://journals.ui.edu.ng/index.php/ajem/article/view/1600.