AL-BUSAIDI, S.; YUSUF, T.; REINDERS, H. A Model for Implementing Problem-Based Language Learning: Experiences from a Seven-Year Journey. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 20, n. 1, p. 1–21, 2021. Disponível em: https://ijlter.net/index.php/ijlter/article/view/165. Acesso em: 8 sep. 2026.