ISI(G) Topological Index of Sum Graphs For Some Finite Groups: ISI(G) Topological Index of Sum Graphs For Some Finite Groups. Acad. Sci. J. [Internet]. 2023 Jul. 1 [cited 2025 Apr. 4];1(3):230-44. Available from: https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/79