- Author: Byung Hong Kim, Geoffrey Michael Gadd
- Language: English
- Year: 2019
- Author: Geoffrey Michael Gadd
- Language: English
- Year: 2006
- Author: Byung Hong Kim Geoffrey Michael Gadd
- Language: English
- Year: 2008
- Author: Byung Hong Kim Geoffrey Michael Gadd
- Language: English
- Year: 2008