YOUNG BAE JUN; SMARANDACHE, Florentin; MEHMAT ALI O¨ZTU¨RK. Commutative falling neutrosophic ideals in BCK-algebras. Neutrosophic Sets and Systems, [S. l.], v. 20, p. 44–53, 2018. Disponível em: https://fs.unm.edu/nss8/index.php/111/article/view/285.. Acesso em: 9 jun. 2025.