Fuzzy Bigroup from another Viewpoint. Fountain Journal of Natural and Applied Sciences, [S. l.], v. 5, n. 2, 2016. DOI: 10.53704/fujnas.v5i2.101. Disponível em: https://www.fountainjournals.com/index.php/FUJNAS/article/view/101. Acesso em: 6 nov. 2025.