Takaaki Fujita and Florentin Smarandache (2024) “Mixed Graph in Fuzzy, Neutrosophic, and Plithogenic Graphs”, Neutrosophic Sets and Systems, 74, pp. 457–479. Available at: https://fs.unm.edu/nss8/index.php/111/article/view/5521 (Accessed: 17 May 2025).