Karp, A . (2005). Tracking Every Movement. Retrieved March 21, 2009, from
Nobel, C. (September 27, 2004). Wireless: Data capture- Delivery mechanisms
Brewin, B. (2003). UPS to spend $127M on tri-mode wireless driver terminals. Computerworld
Mobile and Wireless. Retreived March 14, 2009, from http://www.computerworld.com/action/article.do
Eng, P.M. (1991). Now UPS customers will have to sign on the dotted screen. Business Week
Online. Retreived March 14, 2009, from http://www.businessweek.com/archives/1991/
Evolution of the UPS Delivery Information Acquisition Device (DIAD). (2004). UPS
Pressroom. Retrieved March 14, 2009, from http://www.pressroom.ups.com/mediakits/
Fillion, R. (2008) UPS technology saves fuel. Rocky Mountain News. Retrieved March 13,
2009, from http://m.rockymountainnews.com/news/2008/Jun/24/ups-technology-saves-fuel/
UPS Parcel Delivery Tracking Application. (2001). Mobile Info Best Practices Case Studies.
Retreived March 15, 2009, from http://www.mobileinfo.com/case_study/ups.html.
2007 UPS Corporate Sustainability Report. (August 2008). UPS Sustainability. Retrieved March
Vision 2013. (October 2008). Five Year Strategic Plan for 2009-2013. Retrieved March 23,
Mission, Strategy, Values. (2009). Company Information. Retrieved March 23, 2009, from