- Author: C. K. Gupta D. Sathiyamoorthy
- Language: English
- Year: 1998
- Author: S.C. Gupta
- Language: English
- Year: 2003
- Author: Sharat Chandra Gupta
- Language: English
- Year: 2008
- Author: Kunal Mittal Shikha Gupta
- Language: English
- Year: 2010
- Author: Anil Gupta
- Language: English
- Year: 2006
- Author: Suman Gupta
- Language: English
- Year: 2009
- Author: Suman Gupta
- Language: English
- Year: 2011
- Author: Ajaya Kumar Gupta
- Language: English
- Year: 1990
- Author: Jain P.K. Gupta V.P.
- Language: English
- Year: 1986
- Author: Gupta S.C.
- Language: English
- Year: 2003