Ashraf, Ather, and Muhammad Arif Butt. “Extension of TOPSIS Method under Single-Valued Neutrosophic N-Soft Environment”. Neutrosophic Sets and Systems 41 (April 24, 2021): 286–303. Accessed July 16, 2025. https://fs.unm.edu/nss8/index.php/111/article/view/1098.