FLORESCANO, E. Tula-Teotihuacán, Quetzalcóatl y la Toltecayótl. Historia Mexicana, [S. l.], v. 13, n. 2, p. 193–234, 1963. Disponível em: https://historiamexicana.colmex.mx/index.php/RHM/article/view/957. Acesso em: 3 may. 2024.