HACK, C. Using Web 2.0 Technology to Enhance, Scaffold and Assess Problem-Based Learning. Journal of Problem Based Learning in Higher Education, [S. l.], v. 1, n. 1, p. 230–246, 2013. DOI: 10.5278/ojs.jpblhe.v1i1.284. Disponível em: https://journals.aau.dk/index.php/pbl/article/view/284. Acesso em: 29 apr. 2024.