- Author: Dr. Sadhu Singh
- Language: English
- Year: 2015
- Author: R.K. Rajput
- Language: English
- Year: 2014
- Author: Dr. Sadhu Singh
- Language: English
- Year: 2013
- Author: M.D. Raisinghania
- Language: English
- Year: 2013
- Author: Subrahmanyam N., Lal Brij V. and Avadhanulu M. N.
- Language: English
- Year: 2006