ABOSSEDE AYOBOLA IGUNNU. Study of Quality Assurance in Examination Conduction and Administrative Effectiveness of Principals in Public and Private Secondary Schools in Niger State, Nigeria. International Journal of Research in Social Science and Humanities (IJRSS) ISSN:2582-6220, DOI: 10.47505/IJRSS, [S. l.], v. 1, n. 3, p. 1–7, 2020. DOI: 10.47505/IJRSS.2020.9115. Disponível em: https://ijrss.org/index.php/ijrss/article/view/16. Acesso em: 23 nov. 2024.