Sabiela, Royana Nafisa, et al. “Realistic Mathematics Education in the Context of Truck Tires and Marble Games in Elementary School Addition and Subtraction Material”. MATH-EDU: Jurnal Ilmu Pendidikan Matematika, vol. 10, no. 2, Aug. 2025, pp. 212-20, doi:10.32938/jipm.v10i2.8964.