Dwiyanti, L., Khan, R. I., & Kurniawati, E. (2018). Development of Smart Adventure Games to Improve the Readiness of the Initial Ability of Reading, and Writing (CALIS) on Early Childhood. Jurnal Obsesi : Jurnal Pendidikan Anak Usia Dini, 2(2), 149–154. https://doi.org/10.31004/obsesi.v2i2.91