Fuzzy Right (Left) Ideals in Hypergroupoids and Fuzzy Bi-ideals in Hypersemigroups. Armenian Journal of Mathematics, [S. l.], v. 10, n. 3, p. 1–10, 2018. Disponível em: http://test.armjmath.sci.am/index.php/ajm/article/view/196. Acesso em: 23 nov. 2024.