Abstracts [de Foro Internacional : v.49, no.2 (196), 2009]. Foro Internacional, México, Ciudad de México, v. 49, n. 2, p. 448–450, 2009. Disponível em: https://forointernacional.colmex.mx/index.php/fi/article/view/1952. Acesso em: 1 jul. 2025.