TEAM, S. Some Operations Defined on Subspaces via α-Open Sets: Hariwan Zikri Ibrahim, Alias B. Khalaf. Thai Journal of Mathematics, [S. l.], v. 17, n. 1, p. 283–291, 2019. Disponível em: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/892. Acesso em: 22 dec. 2024.