NWAZOR, J. C.; CHUKWUDI, N. F.; NGOZI, N. R. Determination of Administrative and Supervisory Leadership Needs of Principals of Secondary Schools in South East and South South Nigeria. Journal of Human Resource and Leadership, [S. l.], v. 1, n. 2, p. 17–27, 2016. Disponível em: https://www.iprjb.org/journals/index.php/JHRL/article/view/213. Acesso em: 18 may. 2024.