C. SANDHYA, S. B. K. V. MINIMAL βg-OPEN SETS AND MAXIMAL βg-CLOSED SETS. Asian Journal of Current Engineering and Maths, [S. l.], v. 1, n. 5, 2013. Disponível em: http://innovativejournal.in/index.php/ajcem/article/view/111. Acesso em: 3 may. 2024.