V J Kaneria, Om Teraiya, and Parinda Bhatt. “One Point Union of $\alpha-$graceful Graphs”. International Journal of Mathematics And its Applications 4, no. 2 - A (May 1, 2016): 7–11. Accessed July 3, 2024. https://ijmaa.in/index.php/ijmaa/article/view/1000.