Author: Singh, Raghubir
Publisher:D. B. Taraporevala, Bombay
Copyright:1938
Author: Morgenstierne, Georg
Publisher:Harvard University Press, London
Copyright:1938
Author: Quarrell, C. P.
Publisher:Crosby Lockwood,London
Copyright:1938
Author: Saiyidain, K.G
Publisher:Arafat publication, Lahore
Copyright:1938
Author: Singh, Baldev
Publisher:Nehru Memorial Museum and Library, New Delhi
Copyright:1986
Author: Prasad, Bimal
Publisher:Manohar Publishers and Distributors, New Delhi
Copyright:2001
Author: Hewett, John
Publisher:Methuen and Company,London
Copyright:1938
Author: Schomberg, R.C.F.
Publisher:Martin Hopeinson, London
Copyright:1938
Author: Woolner, A. C.
Publisher:Oxford University Press, London
Copyright:1938