THE EFFECTIVENESS OF DUOLINGO AS A SUPPLEMENTARY TOOL IN ARABIC VOCABULARY ACQUISITION AMONG EFL LEARNERS IN HIGHER EDUCATION: A QUALITATIVE CASE STUDY. BARAYA : International Journal of Arabic and World Languages Education, [S. l.], v. 2, n. 1, p. 1–13, 2026. Disponível em: https://ejournal.stairaya.ac.id/index.php/baraya/article/view/101. Acesso em: 19 may. 2026.