- Author: David A. Shirk
- Language: English
- Year: 2004
- Author: By Emily Edmonds-Poli, David A. Shirk
- Language: English
- Year: 2020
- Author: David A. Shirk and Andrew Selee Eric L. Olson
- Language: English
- Year: 2010
- Author: Emily Edmonds-Poli David A. Shirk
- Language: English
- Year: 2008
- Author: Professor David A. Shirk
- Language: English
- Year: 2011