By Viswanadha Satyanarayana
By Dr Karri Satyanarayana
By Sri Rangam Subbarao , Sri Ramamurthy Sodarulu
By Dr T S Rao
By A N Nageswara Rao
By Dr Manjuluri Narasimharao
By Tadanki Venkata Lakshmi Narasimha Rao
By V.V.Ramarao
By Paul De Kruif And Translated By Jammi Koneti Rao
By Bhimeswarao Vemavarapu
By Aavatapalli Narayana Rao
By Dr Chaganti Surya Narayana Murty
By Tadanki Venkata Lakshmi Narasimharao
By Karlapalem Hanumantarao
By Sri Mangipudi Suryanarayana
By Albert Rhys Williams And Translated By Vuppala Laxmana Rao
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