Ndruru M, Telaumbanua YN, Harefa AO, Lase S. Pengaruh Model Pembelajaran Flipped Classroom Terhadap Kemampuan Pemecahan Masalah Matematis Siswa. IRJE [Internet]. 2024 Sep. 3 [cited 2026 Oct. 6];4(4):73-8. Available from: https://irje.org/irje/article/view/1034