Sum Graph of Z_(p^n q^m ) Groups and Some Topological Indices of G+ (Z_(p^n q^m )). Samarra Journal of Pure and Applied Science, [S. l.], v. 5, n. 1, p. 192–203, 2023. DOI: 10.54153/sjpas.2023.v5i1.486. Disponível em: https://sjpas.com/index.php/sjpas/article/view/486. Acesso em: 16 apr. 2026.