Abraham Jacob, Ramkumar P. B., and Dhanya P. M. “Directed Neutrosophic Graph Using Morphological Operators and Its Applications”. Neutrosophic Sets and Systems 96 (February 25, 2026): 1–18. Accessed December 17, 2025. https://fs.unm.edu/nss8/index.php/111/article/view/7250.