By Dr Manjuluri Narasimharao
By Malladi Venkata Krishna Murthy
By Kampalle Ravichandran
By Priyank Narayan
By Sudha Murty
By Rentala Gopala Krishna
By Tadanki Venkata Lakshmi Narasimha Rao
By V.V.Ramarao
By John Holt
By P.V.R.K.Prasad
By Paul De Kruif And Translated By Jammi Koneti Rao
By Carl Sagan And Translated By V.Srinivasa Chakravarthy
By Sujatha Velpuri
By Paramanandayya
By Thenneti Suri
By Bhimeswarao Vemavarapu
By K B Gopalam
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