- Author: John B. Taylor Akila Weerapana
- Language: English
- Year: 2021
- Author: John B. Taylor Akila Weerapana
- Language: English
- Year: 2020
- Author: John B. Taylor Akila Weerapana
- Language: English
- Year: 2007
- Author: John B. Taylor Akila Weerapana
- Language: English
- Year: 2007