V. ANANTHI; K. BHUVANESWARI. Further Study on $\omega$-closed Sets. International Journal of Mathematics And its Applications, [S. l.], v. 8, n. 1, p. 111–122, 2020. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/182. Acesso em: 6 may. 2024.