Suryati, Erna, and Hendri Abdul Qohar. “The Effect of Coin Media on Addition Skills of a Student With Mild Intellectual Disability”. Journal of Teacher Training and Educational Research 4, no. 1 (August 31, 2026): 215–223. Accessed September 13, 2026. https://ojs.literasiedu.org/index.php/jotter/article/view/627.