P.CHANDRAMOORTHI. C*- Set in Topological Spaces. International Journal of Engineering and Management Research, [S. l.], v. 9, n. 1, p. 229–230, 2019. DOI: 10.31033/ijemr.9.1.30. Disponível em: https://ijemr.vandanapublications.com/index.php/j/article/view/1309. Acesso em: 17 mar. 2026.