Seran, Theodorina, Haryono Haryono, and Catharina Anni. “School Readiness: Readiness Children Seen from The Whole Aspect of Early Childhood Development”. Journal of Primary Education 6, no. 3 (December 1, 2017): 224-232. Accessed November 24, 2024. https://journal.unnes.ac.id/sju/jpe/article/view/21072.