W. Askandar S, بیداء, S. Abdullah B, صبیح, N. Balo R, رقیة. hα-Open Sets in Topological Spaces. EDUSJ [Internet]. 2022 Sep. 1 [cited 2025 Aug. 4];31(3):91-8. Available from: https://rjps.uomosul.edu.iq/index.php/edusj/article/view/17395