ALQAHTANY, M. A.; DALE, T. B. Bipolar Fuzzy Filters in BL-Algebras. Journal of the Indonesian Mathematical Society, [S. l.], v. 31, n. 3, p. 1821, 2025. Disponível em: https://jims-a.org/index.php/jimsa/article/view/1821. Acesso em: 25 aug. 2025.