“Strategy for Utilizing Duolingo As an Interactive Learning Media to Improve Vocational High School Students’ Oral Communication Skills”. Tekno - Pedagogi : Jurnal Teknologi Pendidikan 15, no. 2 (October 30, 2025): 54–64. Accessed October 3, 2026. https://online-journal.unja.ac.id/pedagogi/article/view/48542.