- Author: Watson Ronald Ross, Preedy Victor R
- Language: English
- Year: 2013
- Author: Watson Ronald Ross
- Language: English
- Year: 2010
- Author: Watson Ronald Ross
- Language: English
- Year: 2015
- Author: Watson Ronald Ross
- Language: English
- Year: 2015
- Author: Preedy Victor R., Watson Ronald Ross
- Language: English
- Year: 2015
- Author: Preedy Victor R., Watson Ronald Ross, Zibadi Sherma
- Language: English
- Year: 2010
- Author: Preedy Victor R., Watson Ronald Ross, Zibadi Sherma
- Language: English
- Year: 2014
- Author: Preedy Victor R., Watson Ronald Ross
- Language: English
- Year: 2019
- Author: Preedy Victor R., Watson Ronald Ross
- Language: English
- Year: 2013
- Author: Patel Vinood B., Preedy Victor R., Watson Ronald Ross
- Language: English
- Year: 2011