- Author: Brian D. Hahn, Daniel T Valentine
- Language: English
- Year: 2019
- Author: Brian H. Hahn Daniel T. Valentine
- Language: English
- Year: 2016
- Author: Brian D Hahn, Daniel T Valentine
- Language: English
- Year: 2013
- Author: Brian D.Hahn Daniel T.Valentine
- Language: English
- Year: 2010
- Author: Brian D.Hahn Daniel T.Valentine
- Language: English
- Year: 2007
- Author: Brian D.Hahn Daniel T.Valentine
- Language: English
- Year: 2009