NINGRUM, S.; RISNAWATI; MULYADI, A. I.; AZIZA, R.; ZAHRA, S. W. U.; PURDANI, F. D. Evaluating OutLoud!: A CEFR-Based Digital Game for EFL Speaking Instruction. Jurnal Pembelajaran Bahasa dan Sastra, [S. l.], v. 5, n. 3, p. 2189–2200, 2026. DOI: 10.55909/jpbs.v5i3.1433. Disponível em: https://pembahas.dialeks.id/index.php/jp/article/view/1433. Acesso em: 13 may. 2026.