Roughness of Fuzzy Ideals in Left Almost Semigroups. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 9, n. 3, p. 2444–2463, 2014. DOI: 10.24297/jam.v9i3.2423. Disponível em: https://rajpub.com/index.php/jam/article/view/2423. Acesso em: 3 jul. 2024.