- Author: David Ricardo Williams
- Language: English
- Year: 1983
- Author: P.B. Waite
- Language: English
- Year: 1987
- Author: Roy MacLaren
- Language: English
- Year: 2004
- Author: Laurence F. Wilmot
- Language: English
- Year: 2003
- Author: Vijay Agnew
- Language: English
- Year: 2003
- Author: Calvin White
- Language: English
- Year: 2015
- Author: Cat Klerks
- Language: English
- Year: 2015