Mba, Callistus Okechukwu, and Chima Sebastine Ugwulashi. “Quality Assurance: Managing Education for School Improvement”. Advances in Social Sciences Research Journal 6, no. 8 (August 25, 2019): 248–263. Accessed November 23, 2024. http://116.203.177.230/index.php/ASSRJ/article/view/6924.