Rough Pythagorean Fuzzy Sets in UP-Algebras. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 15, n. 1, p. 169–198, 2022. DOI: 10.29020/nybg.ejpam.v15i1.4254. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/4254.. Acesso em: 3 may. 2024.