The efficiency of public secondary school principals in the Giza District Education Directorate in managing time in light of the Corona pandemic from the teachers’ point of view. Journal of Educational and Psychological Sciences, [S. l.], v. 6, n. 22, p. 101–120, 2022. DOI: 10.26389/AJSRP.N261021. Disponível em: https://journals.ajsrp.com/index.php/jeps/article/view/5131.. Acesso em: 3 jul. 2024.