Askandar, Sabih, Beyda S. Abdullah, and Luma Khaleel. “Soft I-Open Sets in Soft Bi-Topological Spaces”. Al-Qadisiyah Journal of Pure Science 27, no. 1 (January 21, 2023): 124-136. Accessed January 18, 2026. https://www.journalsc.qu.edu.iq.51-77-64-103.cpanel.site/index.php/JOPS/article/view/1592.