Jadidah, I., R. Annisah, M. Melinda, P. Padiman, and K. Anggilin. “Analysis of the Implications of Learning Elementary Mathematics According to Jean Piaget’s Theory”. Journal Of Dehasen Educational Review, Vol. 4, no. 02, July 2023, pp. 139-44, doi:10.33258/joder.v4i02.4256.