BABAEE, S.; BORJI, H. V. The Role of Problem-Based Learning (PBL) E-portfolios on Writing Anxiety. International Journal of Sciences: Basic and Applied Research (IJSBAR), [S. l.], v. 36, n. 1, p. 279–305, 2017. Disponível em: https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/7976. Acesso em: 5 may. 2024.