PRESENTED BY: FELIX A. NEGRON AMERICAN PRECIOUS METAL RECYCLING LLC As of 23 February 2011 40 Mining Projects in 7 Countries.
DEVELOPMENT OF FREE SOFTWARE APPLIED TO EDUCATION AND RESEARCH Juan Ruiz-Ramírez Gabriela Eréndira Hernández-Rodríguez Christian Pérez-Salazar Miriam de.
International Cooperation Social Development Secretariat Mexico Agosto 10 de 2011.
