THE USE OF DUOLINGO APPLICATION TO IMPROVE ENGLISH VOCABULARY MASTERY AT MAN 1 MAMUJU. Karya Ilm. Mhs. [Internet]. 2026 Aug. 18 [cited 2026 Aug. 24];4(2):303-9. Available from: https://jurnal.fs.umi.ac.id/index.php/KIMA/article/view/675