Irfun I. The Improving Legal Students’ Vocabulary by Using Duolingo at First Semester in Universitas Muhammadiyah Papua. tut wuri handayani jkip j.kegur.ilmu pendidik. [Internet]. 2024 Mar. 30 [cited 2025 Oct. 15];3(1):12-6. Available from: https://jurnal.risetilmiah.ac.id/index.php/jkip/article/view/1115