MUHIUDDIN, G.; SMARANDACHE, Florentin; JUN, Young Bae. Neutrosophic quadruple ideals in neutrosophic quadruple BCI-algebras. Neutrosophic Sets and Systems, [S. l.], v. 25, p. 161–173, 2020. Disponível em: https://fs.unm.edu/nss8/index.php/111/article/view/170.. Acesso em: 15 jan. 2026.