Mohammad Reza Farahani, M. R. Rajesh Kanna, R. Pradeep Kumar, and Sunilkumar Hosamani. “The Edge Zagreb Indices of Circumcoronene Series of Benzenoid”. International Journal of Mathematics And its Applications 4, no. 1 - C (February 29, 2016): 69–74. Accessed May 17, 2024. http://ijmaa.in/index.php/ijmaa/article/view/596.