- Author: Mark Brummel, David Studebaker, Chris Studebaker
- Language: English
- Year: 2019
- Author: Mark Brummel, Christopher D. Studebaker, David A. Studebaker
- Language: English
- Year: 2017
- Author: Mark Brummel
- Language: English
- Year: 2015
- Author: Mark Brummel
- Language: English
- Year: 2014
- Author: Mark Brummel
- Language: English
- Year: 2014
- Author: Mark Brummel
- Language: English
- Year: 2014
- Author: Mark Brummel
- Language: English
- Year: 2010
- Author: Mark Brummel
- Language: English
- Year: 2010