- Author: Helen Breckenridge
- Language: English
- Year: 2014
- Author: Breckenridge Helen
- Language: English
- Year: 2014
- Author: Breckenridge Helen
- Language: English
- Year: 2014
- Author: Villepigue James C., Rivera Hugo A
- Language: English
- Year: 2011
- Author: Schoenfeld Brad
- Language: English
- Year: 2016
- Author: Brad Schoenfeld PhD CSCS CSPS FNSCA
- Language: English
- Year: 2016