1. Census of Fatal Occupational Injuries. (2009A). "Fatal Occupational Injuries by Industry and Selected Event or Exposure." U.S. Bureau of Labor Statistics (June 25 2011).
2. Census of Fatal Occupational Injuries. (2009B). "Fatal Occupational Injuries by Industry and Selected Event or Exposure." U.S. Bureau of Labor Statistics (July 11 2011).
3. Hinze J. and Gambatese J.A. (1996). "Addressing Construction Worker Safety in the Project Design." Research Report RR101-11 to the Construction Industry Institute The University of Texas at Austin.
4. Hinze J. (2003). "CII: Safety Plus: Making Zero Accidents A Reality Research ." Construction Industry Institute University of Texas at Austin.