OLASUNKANMI, A. W. Personality Traits and Administrative Effectiveness of Secondary School Principals in Southwestern Nigeria. Advances in Social Sciences Research Journal, [S. l.], v. 1, n. 8, p. 198–206, 2014. DOI: 10.14738/assrj.18.579. Disponível em: https://journals.scholarpublishing.org/index.php/ASSRJ/article/view/579. Acesso em: 11 may. 2024.