MOOKANAGOUDAR, Sujata S. Pre αg-Open Functions and Pre αg-Closed Functions in Topology. Journal of Global Research in Mathematical Archives(JGRMA), [S. l.], v. 5, n. 7, p. 01–07, 2018. Disponível em: https://jgrma.com/index.php/jgrma/article/view/478. Acesso em: 13 mar. 2025.