John, B. Stephen. “CHROMATIC NUMBER TO THE TRANSFORMATION (G---) OF K(1,n) AND K(m,n)”. Journal of Global Research in Mathematical Archives(JGRMA) 5, no. 4 (April 13, 2018): 23–27. Accessed March 14, 2025. https://jgrma.com/index.php/jgrma/article/view/451.