Darafsheh, M. R., and P. Nosratpour. “Characterization of the Group $G_2(5)$ by the Prime Graph”. Ukrains’kyi Matematychnyi Zhurnal 68, no. 8 (August 25, 2016): 1142-1146. Accessed April 25, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/1909.