On pre­ Open Regular Spaces. Baghdad Science Journal, Iraq, Baghdad, v. 21, n. 12, p. 3831–3835, 2024. DOI: 10.21123/bsj.2024.9237. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/9237.. Acesso em: 15 jan. 2025.