- Author: Ian Mathews Karin Crawford
- Language: English
- Year: 2011
- Author: Karin Crawford, Marie Price, Bob Price
- Language: English
- Year: 2014
- Author: Karin Crawford
- Language: English
- Year: 2011
- Author: Ian Mathews Diane Simpson Karin Crawford
- Language: English
- Year: 2013
- Author: Janet Walker, Karin Crawford, Jonathan Parker
- Language: English
- Year: 2008
- Author: Karin Crawford Janet Walker
- Language: English
- Year: 2008
- Author: Karin Crawford Janet Walker
- Language: English
- Year: 2007