Granados, Carlos, and Alok Dhital. “New Results On Pythagorean Neutrosophic Open Sets InPythagorean Neutrosophic Topological Spaces”. Neutrosophic Sets and Systems 43 (July 9, 2021): 12–23. Accessed November 23, 2024. https://fs.unm.edu/nss8/index.php/111/article/view/1457.