The Success of Problem-Based Learning (PBL) Method on the Improvement of TOEFL Preparation Listening Score at UPT Bahasa Universitas Khairun Students Course. EDU Journal - English Department of UMMU Journal, [S. l.], v. 3, n. 1, p. 1–7, 2023. DOI: 10.52046/edu.j.v3i1.1570. Disponível em: https://jurnal.ummu.ac.id/index.php/edu/article/view/1570. Acesso em: 2 nov. 2025.