S Sowndrarajan, M Jeyaraman, and Florentin Smarandache, “Fixed Point Results for Contraction Theorems in Neutrosophic Metric Spaces”, Neutrosophic Sets Syst., vol. 36, pp. 308–318, Oct. 2020, Accessed: Jul. 23, 2025. [Online]. Available: https://fs.unm.edu/nss8/index.php/111/article/view/4037