- Author: Michael Collins Piper
- Language: English
- Year: 2006
- Author: Victor Thorn, Mark Glenn
- Language: English
- Year: 2016
- Author: Michael Collins Piper
- Language: English
- Year: 2005
- Author: Michael Collins Piper
- Language: English
- Year: 2010
- Author: Michael Collins Piper
- Language: English
- Year: 2013
- Author: Michael Collins Piper
- Language: Englsih
- Author: Victor Thorn
- Language: English
- Year: 2010
- Author: Michael Collins Piper
- Language: English
- Year: 2004
- Author: Michael Collins Piper
- Language: English
- Year: 2006