ÜNAL, E. Web 2.0 Technologies Supporting Problem Based Learning: A Systematic Literature Review. Journal of Problem Based Learning in Higher Education, [S. l.], v. 7, n. 1, 2019. DOI: 10.5278/ojs.jpblhe.v7i1.2845. Disponível em: https://journals.aau.dk/index.php/pbl/article/view/2845. Acesso em: 2 may. 2024.