Josué Nescolarde-Selva and José Luis Usó-Doménech (2015) “Ideological systems and its validation: a neutrosophic approach”, Neutrosophic Sets and Systems, 9, pp. 31–46. Available at: https://fs.unm.edu/nss8/index.php/111/article/view/3918 (Accessed: 8 July 2025).