ESQUIVEL GARCÍA, Margarito. CONTRAPORTADA. Revista-Divulgación de Ciencia y Educación, [S. l.], v. 3, n. 1, 2025. Disponível em: https://upeg.edu.mx/redicye/jsredicye/index.php/redicye/article/view/83. Acesso em: 4 abr. 2026.