Nindy Dwi Kurniasih, and Taruni Suningsih. “Development of Magnetic Numbers Book Media to Introduce the Concept of Numbers to Children Aged 5-6 Years”. International Journal of Education Research and Development 5, no. 1 (March 30, 2025): 53–66. Accessed April 9, 2026. https://mail.yayasancec.or.id/e-journal/index.php/corolla/article/view/102.