Author: Ziauddin, M
Publisher:Visva Bharati Book Shop, Calcutta
Copyright:1986
Author: Steevens, G. W.
Publisher:William Blackwood, London
Copyright:1980
Author: Adler, Felix
Publisher:D. Appleton and Company, New York
Copyright:1980
Author: Rao, Hayavadana
Publisher:At The Government, Bangalore
Copyright:1980