- Author: Tony Gaddis Kip R. Irvine
- Language: English
- Year: 2019
- Author: Tony Gaddis Judy Walters Godfrey Muganda
- Language: English
- Year: 2019
- Author: Tony Gaddis
- Language: English
- Year: 2019
- Author: Tony Gaddis
- Language: English
- Year: 2018
- Author: Tony Gaddis
- Language: English
- Year: 2018
- Author: Tony Gaddis Kip Irvine
- Language: English
- Year: 2017
- Author: Tony Gaddis
- Language: English
- Year: 2012
- Author: Tony Gaddis Kip Irvine
- Language: English
- Year: 2016
- Author: Tony Gaddis
- Language: English
- Year: 2017
- Author: Tony Gaddis
- Language: English
- Year: 2018