REFAAT, R. .; ISMAIL SALAHELDIN, S. New Neutrosophic Scale System Framework. Neutrosophic Sets and Systems, [S. l.], v. 40, p. 195-213, 2021. Disponível em: http://fs.unm.edu/NSS2/index.php/111/article/view/1217. Acesso em: 29 may. 2023.