- Author: Spechtenhauser Klaus
- Language: English
- Year: 2006
- Author: Osman Michael
- Language: English
- Year: 2018
- Author: Demissie Fassil
- Language: English
- Year: 2017
- Author: Bullivant Lucy
- Language: English
- Year: 2017
- Author: Berelowitz Lance
- Language: English
- Year: 2010
- Author: Hardy Andrea E., Preiser Wolfgang F.E, Wilhelm Jacob J.
- Language: English
- Year: 2018