LINA FAIQOTUL HIMMAH. THE EFFECTIVENESS OF USING DUOLINGO APPLICATION TO IMPROVE STUDENTS VOCABULARY. Teaching English as Foreign Language, Literature and Linguistics, [S. l.], v. 4, n. 1, p. 33–39, 2024. DOI: 10.33752/teflics.v4i1.6296. Disponível em: https://ejournal.unhasy.ac.id/index.php/TEFLIC/article/view/6296. Acesso em: 3 jul. 2024.