M. Rajkumar1 , M. Chandramouleeswaran2. “Homomorphisms on S-Valued Graphs”. International Journal of Emerging Trends in Science and Technology 3, no. 10 (October 31, 2016): 4695-4703. Accessed September 29, 2024. https://ijetst.igmpublication.org/index.php/ijetst/article/view/1230.