1. The Communications Infrastructure of Puerto Rico. Geographic Origin: Puerto Rico Publisher: Economic Development Administration - Commonwealth of Puerto Rico Date: 1986
2. Highlights of the Electrical and Electronic Industry in Puerto Rico, U.S.A. Geographic Origin: Puerto Rico Publisher: Economic Development Administration - Government of Puerto Rico Date: 1993-1997
3. Telefonica's Exploitation of Colombian Workers, the US-Colombia FTA, and the Labor Action Plan. A Case Study by the Communication Workers of America. Geographic Origin: United States Publisher: Communication Workers of America (CWA) Date: 2014