“THE EFFECTIVENESS OF DUOLINGO AS A SUPPLEMENTARY TOOL IN ARABIC VOCABULARY ACQUISITION AMONG EFL LEARNERS IN HIGHER EDUCATION: A QUALITATIVE CASE STUDY”. BARAYA : Journal of Arabic and World Languages Education 2, no. 1 (August 19, 2026): 42–55. Accessed October 26, 2026. https://ejournal.stairaya.ac.id/index.php/baraya/article/view/103.