- Author: Tavmjong Bah
- Language: English
- Year: 2011
- Author: Sassoon Rosemary
- Language: English
- Year: 2003
- Author: Nelson Jay J
- Language: English
- Year: 2017
- Author: Mabin Jacqui Salerno, McCarter Jim
- Language: English
- Year: 2008
- Author: Gruman Galen
- Language: English
- Year: 2010
- Author: Cohen Sandee
- Language: English
- Year: 2009
- Author: Schwabe Rainer W
- Language: German
- Year: 2016
- Author: Schwabe Rainer W
- Language: German
- Year: 2016
- Author: Gookin Dan
- Language: English
- Year: 2013