Sarkar, Ishita, Manjunath Nanjappa, and R. Manjunatha. “On the Hyper Zagreb Indices of the Subdivision Related Composite Graphs”. Communications in Mathematics and Applications 14, no. 5 (December 31, 2023): 1625–1643. Accessed November 24, 2024. http://rgnpublications.com/journals/index.php/cma/article/view/2261.