- Author: Wisdom Andrew Carl, Kiley Christine
- Language: English
- Year: 2012
- Author: Alejandro Ortega Trillo
- Language: Spanish
- Year: 2011
- Author: David Werthmann
- Language: English
- Year: 2012
- Author: Thomas M. Santa
- Language: English
- Year: 2013
- Author: Vandy Brennan Nies
- Language: English
- Year: 2010
- Author: Randy Hain
- Language: English
- Year: 2011
- Author: Dennis J. Billy
- Language: English
- Year: 2012
- Author: Dennis J. Billy
- Language: English
- Year: 2010
- Author: François Vayne
- Language: English
- Year: 2008
- Author: Chuck Blankenship
- Language: English
- Year: 2012