Takaaki Fujita, and Iqbal M. Batiha. “ Note of HyperNeutrosophic Crisp Set and SuperHyperNeutrosophic Crisp Set”. Neutrosophic Sets and Systems, vol. 96, Feb. 2026, pp. 119-32, https://fs.unm.edu/nss8/index.php/111/article/view/7264.