Author: Sinha, B.P
Publisher:Bihar Puravid Parishad,Patna
Copyright:2000
Author: Macgowan, Kenneth
Publisher:Macmillan company, New York
Copyright:1950
Author: Bryan, George S.
Publisher:Alfred A. Knopf, London
Copyright:1947
Author: Plumb, J.H.
Publisher:Penguin Books, Harmondsworth
Copyright:1950
Author: Thomson, David
Publisher:Penguin Books, Harmondsworth
Copyright:1950
Author: Stallybrass, William Swan
Publisher:George Routledge & Sons Ltd., London
Copyright:1947
Author: Suzuki, Daisetz Teitaro
Publisher:Rider, London
Copyright:1950