KEMAL KAYIKÇI; ŞENOL ŞARLAK. Organizational Barriers Which Reduce the Effectiveness of Supervision of Elementary Schools. Elementary Education Online, [S. l.], v. 12, n. 2, p. 461–478, 2023. Disponível em: https://ilkogretim-online.org/index.php/pub/article/view/5418. Acesso em: 2 jan. 2025.