Sirajuddin, S. et al. 2025. Visualizing Fractions: Enhancing Problem-Solving Performance Through Diagrammatic Reasoning in Elementary Mathematics. Jurnal Penelitian dan Pengkajian Ilmu Pendidikan: e-Saintika. 9, 2 (Jul. 2025), 512–524. DOI:https://doi.org/10.36312/e-saintika.v9i2.3139.