PRINCIPALS’ SUPERVISORY TECHNIQUES AS PREDICTORS OF SCHOOL ADMINISTRATION IN SECONDARY SCHOOLS IN RIVERS STATE. UNIZIK Journal of Educational Management and Policy, [S. l.], v. 5, n. 1, p. 250–260, 2023. Disponível em: https://journals.unizik.edu.ng/ujoemp/article/view/2180. Acesso em: 9 may. 2025.