Kristina, M., and R. Sari. “Pengaruh Edukasi Stimulasi Terhadap Perkembangan Kognitif Anak Usia Dini”. Journal Of Dehasen Educational Review, Vol. 2, no. 01, June 2021, pp. 1-5, https://jurnal.unived.ac.id/index.php/jder/article/view/1402.