Author: Bryan, George S.
Publisher:Alfred A. Knopf, London
Copyright:1947
Author: Smith, Vincent A
Publisher:Wisdom Publications, Bulandshahr, U.P. (India)
Copyright:1981
Author: Torrens, W.M.
Publisher:Lakshmi Narayan Nath
Copyright:1938
Author: Ratnagar,Shereen
Publisher:Oxford University Press, Delhi
Copyright:1981
Author:
Publisher:Encyclopedia Britannica, London
Copyright:1938
Author: Kale, Y. M.
Publisher:Governmental Central Press, Bombay
Copyright:1938