MAHALE, R.; PAWAR, K. On the Zagreb indices of the zero-divisor graph of Z_n. International Journal of Maps in Mathematics, [S. l.], v. 9, n. 1, p. 67–80, 2026. Disponível em: https://www.simadp.com/journalmim/article/view/318. Acesso em: 19 jul. 2026.