S. Satham Hussain, R. Jahir Hussain, and Florentin Smarandache. “On Neutrosophic Vague Graphs”. Neutrosophic Sets and Systems 28 (August 31, 2019): 245–258. Accessed February 16, 2025. https://fs.unm.edu/nss8/index.php/111/article/view/248.