LESTARI, Y.; HARTONO, R.; YULIASRI, I.; PRATAMA, H. Problem-Based Learning Implementation for Students’ Speaking Achievement. International Conference on Science, Education, and Technology, [S. l.], v. 9, n. 1, p. 886–891, 2023. Disponível em: https://proceeding.unnes.ac.id/ISET/article/view/2526. Acesso em: 15 may. 2024.