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- [6] The EDUSOC 2012 congress revives in Colombia and Mexico the Euro- Ibero American debate on the contribution of educational institutions to the development of solidarity in the knowledge society VIRTUALIDAD EDUCACION Y CIENCIA, 2012, 3 (04): : 87 - 91
- [10] Buy American! Or buy! American!? DIESEL PROGRESS NORTH AMERICAN EDITION, 2002, 68 (04): : 2 - 2