[1]
Ahmed B. AL-Nafee, A. A. Salama, F. Smarandache, and A. A. Salama, “New Types of Neutrosophic Crisp Closed Sets”, Neutrosophic Sets Syst., vol. 36, pp. 175–183, Oct. 2020, Accessed: Sep. 10, 2025. [Online]. Available: https://fs.unm.edu/nss8/index.php/111/article/view/781