TONWE, U. A. C. PRINCIPALS’ MANAGEMENT STRATEGIES FOR ACHIEVING EDUCATIONAL OBJECTIVES IN SECONDARY SCHOOLS IN DELTA STATE, NIGERIA. UNIZIK Journal of Educational Management and Policy, [S. l.], v. 3, n. 1, p. 189–203, 2019. Disponível em: https://journals.unizik.edu.ng/ujoemp/article/view/592. Acesso em: 7 may. 2024.