Rosyidah, Umniyah Juman, Ekaning Dewanti Laksmi, and Mirjam Anugerahwati. 2023. “Gamification in Duolingo App on Improving English Listening Proficiency of Junior High School Students”. ENGLISH FRANCA : Academic Journal of English Language and Education 7 (1 May):119-32. https://doi.org/10.29240/ef.v7i1.5377.