The Wiener Index of Prime Graph $PG(\mathbb{Z}_n)$. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 17, n. 3, p. 1659–1673, 2024. DOI: 10.29020/nybg.ejpam.v17i3.5166. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/5166. Acesso em: 22 dec. 2024.