OCAK, M. A.; ULUYOL, Çelebi. Investigation of students’ intrinsic motivation in project based learning. Journal of Human Sciences, [S. l.], v. 7, n. 1, p. 1152–1169, 2010. Disponível em: https://www.j-humansciences.com/ojs/index.php/IJHS/article/view/1222. Acesso em: 28 apr. 2024.