- Author: Suehring Steve
- Language: English
- Year: 2010
- Author: Leonard G. Lobel Eric D. Boyd
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- Year: 2014
- Author: Faithe Wempen
- Language: English
- Year: 2001
- Author: Julian Templeman
- Language: English
- Year: 2013
- Author: John Paul Mueller
- Language: English
- Year: 2013
- Author: Michael Howard David LeBlanc
- Language: English
- Year: 2007
- Author: Kenn Scribner
- Language: English
- Year: 2007
- Author: Solid Quality Learning
- Language: English
- Year: 2006
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- Language: English
- Year: 2007
- Author: Hitachi Consulting
- Language: English
- Year: 2004