DEWI, Ni Putu Adis Cantika; SANTOSA, Made Hery; DEWI, Kadek Sinthya. THE EFFECT OF DUOLINGO IMPLEMENTATION ON SEVENTH-GRADE STUDENTS’ VOCABULARY MASTERY. Jurnal Pendidikan Bahasa Inggris Proficiency, [S.l.], v. 7, n. 2, p. 192-210, july 2025. ISSN 2775-0450. Available at: <https://ejournal.uniska-kediri.ac.id/index.php/PROFICIENCY/article/view/6799>. Date accessed: 01 july 2025. doi: https://doi.org/10.32503/proficiency.v7i2.6799.