Abdullah SI, Jasim TH, Shihab AA. The βm – Homeomorphism in Double Fuzzy Topological Spaces. Tikrit J. Pure Sci. [Internet]. 2023 Dec. 25 [cited 2024 May 21];28(6):153-6. Available from: https://tjps.tu.edu.iq/index.php/tjps/article/view/1599