Author: Prasad, Bimal
Publisher:Manohar Publishers and Distributors, New Delhi
Copyright:2000
Author: S.Gopal
Publisher:Orient Longman, New Delhi
Copyright:1976
Author: S. Gopal
Publisher:B.R.Publishing Corporation, Delhi
Copyright:1976
Author: Kumar, Ravinder Prasad, H. Y. Sharada S. Gopal
Publisher:Jawaharlal Nehru Memorial Fund, New Delhi
Copyright:2000
Author: Kumar, Ravinder Prasad, H. Y. Sharada S. Gopal
Publisher:Jawaharlal Nehru Memorial Fund, New Delhi
Copyright:2000