Muhammad Rezeki 2025. Effect of Grammar Racing Game on Learning Simple Present Tense to Improve Achievement of Elementary Education Students at Palangka Raya University. Jurnal Riset Rumpun Ilmu Bahasa. 4, 3 (Aug. 2025), 154–158. DOI:https://doi.org/10.55606/jurribah.v4i3.6615.