- Author: Mark Justice Hinton, Barbara Obermeier, Doug Sahlin
- Language: English
- Year: 2010
- Author: Doug Sahlin
- Language: English
- Year: 2013
- Author: Doug Sahlin
- Language: English
- Year: 2011
- Author: Doug Sahlin, Joe Hutsko, Jesse Feiler, Barbara Boyd, (Freelance writer) Barbara Boyd
- Language: English
- Year: 2020
- Author: Doug Sahlin
- Language: English
- Year: 2020
- Author: Doug Sahlin
- Language: English
- Year: 2020
- Author: Doug Sahlin
- Language: English
- Year: 2011
- Author: Claudia Snell, Doug Sahlin
- Language: English
- Year: 2009
- Author: Claudia Snell, Doug Sahlin
- Language: English
- Year: 2008
- Author: Doug Sahlin Claudia Snell
- Language: English
- Year: 2