SUKAESIH, Cici; ISKANDAR; FATMASARI, Elly. A Problem-Based Learning Model to Improve English Learning Outcomes: A Study in Middle-School Students. ETDC: Indonesian Journal of Research and Educational Review , [S. l.], v. 3, n. 1, p. 79–88, 2023. DOI: 10.51574/ijrer.v3i1.372. Disponível em: https://etdci.org/journal/ijrer/article/view/372. Acesso em: 30 jul. 2025.