ISUEKEN, ONOSETALE TRACY. CHANGE MANAGEMENT VARIABLES AND ADMINISTRATIVE EFFECTIVENESS IN COVID-19 ERA AND BEYOND: A STUDY OF SCHOOL PRINCIPALS’ IN CALABAR EDUCATIONAL ZONE. EPRA International Journal of Environmental Economics, Commerce and Educational Management (ECEM), [S. l.], v. 9, n. 4, p. 50–58, 2022. Disponível em: https://eprajournals.net/index.php/ECEM/article/view/363. Acesso em: 17 may. 2024.