- Author: Chandra Bipan, Mahajan Sucheta
- Language: English
- Year: 2006
- Author: Aranda Elizabeth M., Hughes Sallie, Sabogal Elena
- Language: English
- Year: 2014
- Author: Geissler Theo, Zimmermann Olaf
- Language: German
- Year: 2015
- Author: Susanne Boshammer
- Language: German
- Year: 2012
- Author: Seyran Ates
- Language: German
- Year: 2007
- Author: Buschkowsky Heinz
- Language: German
- Year: 2013
- Author: Seyran Ates
- Language: German
- Year: 2011
