“Development of Geometry Pocket Box Media in the Field of Cognitive Development of 5-6 Year Old Children in Damarwulan Village”. Jurnal Cendekia Islam Indonesia 1, no. 1 (January 31, 2025): 119–132. Accessed January 24, 2026. https://ejournal.mgedukasia.or.id/index.php/jcii/article/view/65.