- Author: Jeff Cohen
- Language: English
- Year: 2008
- Author: Dr. Lawrence Rosen Jeff Cohen
- Language: English
- Year: 2012
- Author: Jeff Cohen Brian Eng
- Language: English
- Year: 2008
- Author: Jeff Cohen
- Language: English
- Year: 2010
- Author: Jeff Cohen Brian Eng
- Language: English
- Year: 2008