K. Komarudin, S. Saputri, O. D. Sabilla, A. S. Ningsih, S. S. Haquita, and S. Gushalimah, “Conceptual Gap Analysis in Learning Fractions: A Diagnostic Study of Elementary School Students’ Cognitive Structure”, JKPM Jurnal Kaji. Pendidik. Mat., vol. 11, no. 1, pp. 121–130, Dec. 2025, doi: 10.30998/bnkm3q28.