- Author: Searle John Rogers
- Language: English
- Year: 2000
- Author: Searle John Rogers
- Language: English
- Year: 1999
- Author: Searle John Rogers
- Language: English
- Year: 1999
- Author: Searle John Rogers
- Language: English
- Year: 1999
- Author: Cojocaru Iustina, Niţă Adrian, Searle John Rogers
- Language: Romanian
- Year: 2013