MASHRU, Meet J.; LALCHANDANI, Premkumar T. Spectral analysis and energy bounds for total zero-divisor graphs of the ring $\mathbb{Z}_{p^2q^2}$. Journal of Algebra Combinatorics Discrete Structures and Applications, [S. l.], v. 13, n. 3, p. 373–384, 2026. DOI: 10.13069/jacodesmath.v13i3.435. Disponível em: https://jacodesmath.com/index.php/jacodesmath/article/view/435. Acesso em: 12 sep. 2026.