A. Agustiningsih, L. F. Dea, and F. Utama, “Development of Plywood Media into a Magic Drawer to Improve the Cognitive of Children Aged 4-5 Years at Birrul Walidain Kindergarten Gondangrejo Pekalongan East Lampung”, Bulletin. E. Child., vol. 4, no. 2, pp. 191–202, Dec. 2025.