WORKU, M. Y. Effectiveness of Primary School Principals in Managing the Implementation of Civic and Ethical Education Curriculum. Bahir Dar Journal of Education, [S. l.], v. 15, n. 1, 2015. Disponível em: http://journals.bdu.edu.et/index.php/bje/article/view/11. Acesso em: 2 feb. 2026.