Windya W, Silalahi I, Maulana I, Sarumaha I, Juliana J. The Use of Duolingo Application to Enhance Junior High School Students’ Speaking ability. edumaspul [Internet]. 1Oct.2023 [cited 18May2024];7(2):5861-70. Available from: https://ummaspul.e-journal.id/maspuljr/article/view/7442