Hastuti, Wiwik Dwi, Siti Mu’alifah Astati, Sudarjo Sudarjo, and Arif Fathoni. “The Effect of Mathematical Intelligence Stick Media on the Summation Skills of Students With Intellectual Disability”. Pegem Journal of Education and Instruction 13, no. 3 (July 1, 2023): 203–208. Accessed April 25, 2025. https://pegegog.net/index.php/pegegog/article/view/2188.