Ajismanto, Ajismanto, and Yarmis Hasan. “Improving the Ability to Recognize Primary Color Using Plastisifor Children Tunagrahita Light Class III in SLB Luki Padang”. EDUCATIO : Journal of Education 4, no. 2 (November 25, 2019): 162-167. Accessed April 18, 2026. https://ejournal.staimnglawak.ac.id/index.php/educatio/article/view/181.