The First Zagreb Index and the Narumi-Katayama Index of the Non-Commuting Graph on the Group U_{6n}. InPrime:Ind.Jour.Pure.Applied.Math [Internet]. 2025 Oct. 5 [cited 2025 Oct. 16];7(2):117-2. Available from: https://journal.uinjkt.ac.id/inprime/article/view/45483