Kurino, Yeni Dwi, et al. “Enhancing Mathematical Problem-Solving Skills Through Flipped Classrooms and Discovery Learning: A Resilience-Based Approach for Elementary Students”. AL-ISHLAH: Jurnal Pendidikan, vol. 16, no. 4, Dec. 2024, pp. 5399-08, doi:10.35445/alishlah.v16i4.6243.