Rahman, Nurwahida Abdul, Megawati Basri, dan Zulhasmi Abasa. “Facilitating Students’ Vocabulary Learning by Using the Duolingo Application: A Case Study at SMP Muhammadiyah 1 Pulau Morotai”. Jurnal Pendidikan dan Pembelajaran 4, no. 02 (September 1, 2025): 940–952. Diakses November 15, 2025. https://ojs.smkmerahputih.com/index.php/juperan/article/view/1217.