RAADHIYAH, Azkiya Firdausi. UTILIZING THE DUOLINGO APPLICATION FOR SELF-DIRECTED ENGLISH VOCABULARY LEARNING AT MTS MUHAMMADIYAH 1 SAMARINDA. (JIBS) JURNAL ILMIAH BAHASA DAN SASTRA, [S. l.], v. 12, n. 1, p. 103–113, 2025. DOI: 10.21067/jibs.v12i1.12120. Disponível em: http://ejournal.unikama.ac.id/index.php/JIBS/article/view/12120. Acesso em: 5 dec. 2025.