M. Ali, Ahmed, أحمد, Rasha S. Hasan, and رشا. “The Basis Number of Symmetric Difference of K2 With Some Ladder Graphs”. AL-Rafidain Journal of Computer Sciences and Mathematics 15, no. 1 (June 25, 2025): 13–22. Accessed August 5, 2025. https://rjps.uomosul.edu.iq/index.php/csmj/article/view/19460.