Saraswati NA, Anam S, Purwati O. AUTONOMOUS MOBILE-ASSISTED LANGUAGE LEARNING FOR YOUNG LEARNERS USING DUOLINGO. Celtic [Internet]. 2021 Dec. 28 [cited 2024 Nov. 25];8(2):235-46. Available from: https://ejournal.umm.ac.id/index.php/celtic/article/view/16959