Anjarwarti, E. et al. 2026. The Implementation of Project-Based Learning Assisted by GeoGebra-Based Ludomatika to Improve Students’ Mathematics Learning Outcomes in Social Arithmetic. Research in the Mathematical and Natural Sciences. 5, 2 (Jul. 2026), 67–75. DOI:https://doi.org/10.55657/rmns.v5i2.317.