The extent to which governmental secondary schools’ managers in al-hial province have cognitive management requirements. Journal Of Educational and Psychological Researches, [S. l.], v. 15, n. 57, p. 29–51, 2018. Disponível em: https://www.jperc.uobaghdad.edu.iq/index.php/jperc/article/view/137. Acesso em: 5 jul. 2025.