S. Sirajuddin, I. Akib, and N. Nasrun, “Visualizing Fractions: Enhancing Problem-Solving Performance Through Diagrammatic Reasoning in Elementary Mathematics”, J. Penelit. dan. Pengkaj. Ilmu. Pendidik. e-Saintika, vol. 9, no. 2, pp. 512–524, Jul. 2025, doi: 10.36312/e-saintika.v9i2.3139.