
- Author: Fritzsche Doris
- Language: German
- Year: 2014

- Author: Edmonds Michael E., Foster Alethea V. M
- Language: English
- Year: 2014

- Author: Gassenheimer Linda
- Language: English
- Year: 2015

- Author: Gassenheimer Linda
- Language: English
- Year: 2011

- Author: Gassenheimer Linda
- Language: English
- Year: 2014

- Author: Cavuto Katie
- Language: English
- Year: 2016

- Author: Cavan David, Porter Emma
- Language: English
- Year: 2018

- Author: Campbell Amy Peterson
- Language: English
- Year: 2010

- Author: Bernstein Richard K
- Language: English
- Year: 1997