OTOBO, J. T.; UKUTEGBE, S. O. Effectiveness of Discovery, Discussion and Lecture Methods of Teaching Social Studies in Delta State Primary Schools, Nigeria. African Journal of Educational Management, [S. l.], v. 26, n. 1, p. 181–203, 2025. Disponível em: https://journals.ui.edu.ng/index.php/ajem/article/view/1600. Acesso em: 19 apr. 2026.