Othman, Hakeem A., and Alanod M. Sibih. “Weak and Strong Forms of Fuzzy \(\alpha\)-Open (closed) Sets and Its Applications”. Journal of Advanced Studies in Topology 9, no. 2 (June 5, 2022): 100–112. Accessed January 26, 2023. http://m-sciences.com/index.php/jast/article/view/248.