Helyawati, Elyn, Muhammad Yusuf, Leli Fertiliana Dea, Masrurotul Mahmudah, and Isnaini Nur Azizah. “Developing of Using Mineral Glass Media to Become a Number Funnel to Develop Cognitive Aspects of Early Age Children 5-6 Years”. Bulletin of Pedagogical Research 4, no. 1 (April 24, 2024): 100–118. Accessed May 1, 2026. https://attractivejournal.com/index.php/bpr/article/view/1146.