Kezia Nur Elizanti Purba, & Diah Safitri Armin. (2025). The Effectiveness of the “Busuu Platform” in Improving the Writing Skills of 1st Grade Junior High School Students in Medan. Jurnal Onoma: Pendidikan, Bahasa, Dan Sastra, 11(3), 3452–3460. https://doi.org/10.30605/onoma.v11i3.6611