Abdul khalik Alkhafaji, Munir, and Amer Himza Almyaly. “Countability Axioms in Smooth Fuzzy Topological Spaces”. Journal of Al-Qadisiyah for Computer Science and Mathematics 7, no. 1 (August 10, 2017): 41–52. Accessed April 3, 2025. https://jqcsm.qu.edu.iq/index.php/journalcm/article/view/85.