- Author: Rebecca Torstrick
- Language: English
- Year: 2004
- Author: Kefa M. Otiso
- Language: English
- Year: 2013
- Author: Donna L. Akers
- Language: English
- Year: 2013
- Author: Toyin Falola
- Language: English
- Year: 2000
- Author: David E. Long
- Language: English
- Year: 2005
- Author: Paul A. Rodell
- Language: English
- Year: 2001