AL-SAUD, Ratib. Supervisory Techniques used by the Jordanian Principals in Schools. Al-Balqa Journal for Research and Studies, [S. l.], v. 6, n. 1, p. 183–220, 1999. Disponível em: https://ajrs.ammanu.edu.jo/ojs/index.php/albalqajournal/article/view/475.. Acesso em: 11 oct. 2026.