Enhancing Seventh Grade Students’ Speaking Skills through Duolingo Application Integration: A Case Study at SMP Negeri 9 Medan. Jurnal Media dan Inovasi Pembelajaran , [S. l.], v. 1, n. 01, p. 1–8, 2024. Disponível em: http://sorakgemaintelektual.com/jurnal/index.php/judi/article/view/8.. Acesso em: 11 jul. 2025.