Taha H Jasim, Dr. Sami Abdullah Abed, and Ansam Ghazi Nsaif ALBU_Amer. “Concepts Of Bi-Supra Topological Space Via Graph Theory”. Wasit Journal of Computer and Mathematics Science 1, no. 2 (June 30, 2022): 59–64. Accessed August 11, 2025. https://wjcm.uowasit.edu.iq/index.php/wjcm/article/view/37.