W. ASKANDAR, S.; بیداء; S. ABDULLAH, B.; صبیح; N. BALO, R.; رقیة. hα-Open Sets in Topological Spaces. Journal of Education and Science (JES), [S. l.], v. 31, n. 3, p. 91–98, 2022. DOI: 10.33899/edusj.2022.134241.1251. Disponível em: https://rjps.uomosul.edu.iq/index.php/edusj/article/view/17395. Acesso em: 4 aug. 2025.