Sami, Hadil H., Ammar S. Mahmood, and Mohammed K. Ahmed. “On ℵc-Method of E-Abacus Diagram: On ℵc-Method of E-Abacus Diagram”. Journal of Education and Science 35, no. 1 (January 1, 2026): 8–15. Accessed January 20, 2026. https://edusj.uomosul.edu.iq/index.php/edusj/article/view/49254.