S. Ramesh Kumar and Dr. A. Stanis Arul Mary, “Quadripartitioned Neutrosophic Soft Pre - Open And Pre - Closed Sets”, Neutrosophic Sets Syst., vol. 83, pp. 589–595, Jun. 2025, Accessed: May 31, 2025. [Online]. Available: https://fs.unm.edu/nss8/index.php/111/article/view/6154