Yonanda, D. A., D. S. Saputra, A. Rofi’i, A. Rosidah, and B. Febriyanto. “Digital Educational Games to Improve Numerical Literacy of Elementary School Students”. Journal of Information System, Technology and Engineering, vol. 3, no. 2, June 2025, pp. 451-60, doi:10.61487/jiste.v3i2.146.