Kusuma, Rachmalia Vinda, and Saeful Mizan. “Transformation of Number System Learning through an Interactive Number Stacking Game for Elementary School Students”. OMEGA: Jurnal Keilmuan Pendidikan Matematika, vol. 5, no. 1, Jan. 2026, pp. 84-91, doi:10.47662/jkpm.v5i1.1179.