Putri, Gustia Sepriani, Damri Damri, Mega Iswari, Grahita Kusumastuti, and Antoni Tsaputra. “Improving the Ability to Write Natural Number Symbols (1-9) Through the Finger Numbers Media Board for Down Syndrome Students”. Edumaspul: Jurnal Pendidikan 8, no. 1 (March 1, 2024). Accessed April 5, 2026. https://jurnal.unimen.cloud/index.php/maspuljr/article/view/7649.