Md.Hanif PAGE, R.Dhavaseelan, and B.Gunasekar. “Neutrosophic θ−Closure Operator”. Neutrosophic Sets and Systems 38 (December 3, 2020): 41–50. Accessed November 22, 2024. https://fs.unm.edu/nss8/index.php/111/article/view/4171.