TUBA GÖKÇEK, MIHRIBAN HACISALİHOĞLU KARADENİZ. Reasons for Choosing Alternative Sources Instead of Textbook at Secondary Education. Turkish Journal of Computer and Mathematics Education (TURCOMAT), [S. l.], v. 4, n. 1, p. 20–31, 2013. Disponível em: https://www.turcomat.org/index.php/turkbilmat/article/view/48. Acesso em: 9 nov. 2025.