FEBRIANTI, M.; RAHMAWATI, I. N.; AISYAH, A.; NASUTION, A. K. P.; APRIANTO, A. Using the Duolingo Application as a Vocabulary Learning Tool in Higher Education. Journal International of Lingua and Technology, [S. l.], v. 3, n. 2, p. 345–361, 2024. DOI: 10.55849/jiltech.v3i2.673. Disponível em: https://ejournal.staialhikmahpariangan.ac.id/Journal/index.php/jiltech/article/view/673. Acesso em: 13 oct. 2025.