Books By David Israel Contreras-Medina - Author

David Israel Contreras-Medina is Research Professor at Universidad de Guanajuato, Mexico, and Member of the Mexican National System of Researchers. Julia Pérez Bravo is Full-time Professor at Universidad Autónoma de Querétaro, Mexico. Elia Socorro Díaz Nieto is Research Professor at Universidad Autónoma de Querétaro, Mexico.