1. A cting D irector of the C ommittee for L abor C ooperation (CLC) 2007
2. Aspinwall , Mark 2009 “Side Effects: Institutional Design Capacity-Building and Socialization in Nafta's Labor and Environmental Accords
3. BBC N ews 2002 “Mexico/EEUU: La clave es Migración [Mexico/US: The Migration Is the Key], November 26 http://news.bbc.co.uk/hi/spanish/latin_america/newsid_2517000/2517113.stm
4. “Mecanismos de comunicación intergubermental entre Mexico y Estados Unidos [Mechanisms of Intergovernmental Communication between Mexico and the United States];Becerra Gelover;El Cotidiano,2004