SISWANTO, H.; ASTUTIK, Y. Duolingo Application and Vocabulary Scores of Seventh Graders: Pencapaian Aplikasi Duolingo dan Skor Kosakata Siswa Kelas 7. Academia Open, [S. l.], v. 10, n. 1, p. 10.21070/acopen.10.2025.12475, 2026. DOI: 10.21070/acopen.10.2025.12475. Disponível em: https://acopen.umsida.ac.id/index.php/acopen/article/view/12475. Acesso em: 28 feb. 2026.