1. Blake R. (1953). Industrial safety . Second Ed. Prentice‐Hall New York N.Y.
2. Brown D. (1988). “A historical examination of accidents within the U.S. army corps of engineers.” report presented to the University of Washington in Seattle Washington in partial fulfillment of the requirements for the degree of Master of Science.
3. Fullman J. (1984). Construction safety security and loss prevention . John Wiley & Sons New York N.Y.