Saputra, I., A. Septiawan, N. Stevano, L. Marina Angraini, and E. Bonyah. “Analysis of Students’ Mathematical Problem-Solving Ability on Number Matter”. International Journal of Contemporary Studies in Education (IJ-CSE), vol. 4, no. 1, Feb. 2025, pp. 46-59, doi:10.56855/ijcse.v4i1.1045.