Author: Datta ,Bibhutibhusan; Singh, Avadesh Narayan
Publisher:Motilal Bansari Das, Lahore
Copyright:1938
Author: Radhakrishnan, Sarvepalli
Publisher:George Allen, London
Copyright:1952
Author: Leicht, Hermann
Publisher:George Allen & Unwin, London
Copyright:1952
Author: Widengren, Geo
Publisher:
Copyright:1938
Author: Singam, S. Durai Raja,
Publisher:S. Durai raja singam, Kuantan
Copyright:1952
Author: Osborne, Mabel
Publisher:George G. Harrap, London
Copyright:1938
Author: Park, Robert Ezra
Publisher:The Free Press, New York
Copyright:1952
Author: Firth, Raymond
Publisher:Thomas Nelson and sons Ltd, London
Copyright:1938
Author: Russ, R. P.
Publisher:Oxford University Press, London
Copyright:1938
Author: Jurji, Edward Jabra
Publisher:Princeton University press,Princeton
Copyright:1938
Author: Macleod, R.D
Publisher:H.F. & G. Witherby Ltd., London
Copyright:1938
Author: Trease, Geoffrey
Publisher:Basil Blackwell, Oxford
Copyright:1938
Author: Wheeler, J.Talboys
Publisher:Susil Gupta, Calcutta
Copyright:1952