- Author: Rebecca Carswell
- Language: English
- Year: 2009
- Author: Loeffler Bruce
- Language: English
- Year: 2009
- Author: Irvine David, Reger Jim
- Language: English
- Year: 2006
- Author: Michael B. Storms
- Language: English
- Year: 2011
- Author: Larry L. Craft
- Language: English
- Year: 2003