M. MUTHUKUMARI; A. NAGARAJAN; M. MURUGALINGAM. Alpha Cuts of Fuzzy Basis. International Journal of Mathematics And its Applications, [S. l.], v. 3, n. 4 - C, p. 35–37, 2015. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/505. Acesso em: 18 may. 2024.