Marzuki, Marzuki, Agustan Syamsuddin, and Sukmawati Sukmawati. 2025. “The Impact of Game-Based Learning on Motivation and Achievement in Mathematics Education: A Systematic Review (2020–2025)”. PPSDP International Journal of Education 4 (2):1063-80. https://doi.org/10.59175/pijed.v4i2.848.