ANTONY REX RODRIGO, J.; RAVI, O.; NALINIRAMALATHA, A. $\hat{g}$-closed sets in ideal topological spaces. Methods of Functional Analysis and Topology, [S. l.], v. 17, n. 3, p. 274–280, 2011. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/492. Acesso em: 16 dec. 2025.