Waladani, Yuliani, Purwaningsih Purwaningsih, Uswatun Khasanah, Ismatul Khasanah, and Ika Sukesmi. “Improving Early Mathematics Skills Through Contextual Theme-Based Smart Box Media in Early Childhood ”. Edu Happiness: Jurnal Ilmiah Perkembangan Anak Usia Dini 5, no. 2 (July 31, 2026): 279–287. Accessed October 24, 2026. http://ejournal.alfarabi.ac.id/index.php/jos/article/view/1504.