Nindy Dwi Kurniasih, Suningsih T. Development of Magnetic Numbers Book Media to Introduce the Concept of Numbers to Children Aged 5-6 Years . Int Jour edu Research and Dev [Internet]. 2025 Mar. 30 [cited 2026 Jun. 7];5(1):53-66. Available from: https://mail.yayasancec.or.id/e-journal/index.php/corolla/article/view/102