C. Paul Shyni, and T. Ramachandran. “Vertex Coloring of Graph Using Incidence Matrix”. Journal of Computational Analysis and Applications (JoCAAA) 33, no. 08 (September 14, 2024): 543–546. Accessed April 3, 2025. https://eudoxuspress.com/index.php/pub/article/view/1368.