Fuzzy Soft Sets over Fully UP-Semigroups. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 12, n. 2, p. 294–331, 2019. DOI: 10.29020/nybg.ejpam.v12i2.3412. Disponível em: https://ejpam.com/index.php/ejpam/article/view/3412.. Acesso em: 22 jul. 2024.