OKUR, M. R. Investigation of the Effect of Central Placement on Open Education System. Journal of Qualitative Research in Education , [S. l.], v. 7, n. 3, 2019. DOI: 10.14689/issn.2148-624.1.7c.3s.16m. Disponível em: https://enadonline.com/index.php/enad/article/view/1374. Acesso em: 11 feb. 2025.