- Author: Dorman Joseph
- Language: English
- Year: 2000
- Author: Puleo Alicia H., Bruzzese Marina, De Martino Giulio
- Language: Spanish, French
- Year: 1996
- Author: Çiğdem Ahmet
- Language: Turkish
- Year: 1997
- Author: Людвиг Войславский
- Language: Русский
- Year: 2002
- Author: Andre J. Belanger
- Language: English
- Year: 1997