[1]
F. P. Y. Purba, B. Sinaga, and F. Harahap, “Development of Mathematics learning tools through Realistic Mathematics Education (RME) to enhance spatial ability”, Inov. Curr, vol. 22, no. 4, pp. 2301–2314, Nov. 2025, doi: 10.64014/jik.v22i4.110.