- Author: James Warner Bjorkman Rajni Kothari
- Language: English
- Year: 1979
- Author: V. M. Tarkunde
- Language: English
- Year: 1983
- Author: Marietta Tigranovna Stepaniants
- Language: English
- Year: 1989
- Author: Rajni Kothari
- Language: English
- Year: 1988
- Author: Randhir Singh
- Language: English
- Year: 1990