- Author: Michael Nazir-Ali, Nazir-Ali
- Language: English
- Year: 2006
- Author: Ian S. Markham
- Language: English
- Year: 2009
- Author: Habib C. Malik
- Language: English
- Year: 2010
- Author: Christopher R. Duncan
- Language: English
- Year: 2013
- Author: Keith E. Swartley
- Language: English
- Year: 2005
- Author: Mario Apostolov
- Language: English
- Year: 2003
- Author: C. B. Peter, Joseph Wandera, Willem J E Jansen
- Language: English
- Year: 2013
- Author: Yetkin Yildirim, Virginia Garrard-Burnett
- Language: English
- Year: 2011
- Author: Stark Rodney
- Language: English
- Year: 2009