- Author: Martin Johnson
- Language: English
- Year: 2000
- Author: Pflughoeft Jamie
- Language: English
- Year: 2013
- Author: Beyer Alex
- Language: English
- Year: 2018
- Author: Humphrey Theron
- Language: English
- Year: 2017
- Author: Humphrey Theron
- Language: English
- Year: 2017
- Author: Arluke Arnold, Bogdan Robert
- Language: English
- Year: 2010