Simatupang, N. D., Sholichah, S. A., & Simanjuntak, I. A. (2023). Introduction to Counting Symbols in Early Childhood with Stick Math (STIKMA) Educational Tool Games . Jurnal Pendidikan Usia Dini, 17(2), 297 - 311. https://doi.org/10.21009/JPUD.172.08