1. A Whack on the Side of the Head;Von Oech,1998
2. Mastering the Dynamics of Innovation;Utterback,1994
3. Standards and Innovation;Lifchus;ANSI Reporter,1985
4. Judson, L. V.: Weight and Measure Standards of the US: A Brief History. Special Publication 447 ed. National Bureau of Standards, Gaithersburg, MD, 1976.
5. Standard Test Method for Determining the Static Coefficient of Friction of Ceramic Tile and Other Like Surfaces by the Horizontal Dynamometer Pull-Meter Method,1996