By Sreedharan Kanduri
By Shaik Suraiya
By Allan and Barbara Pease
By Dr T S Rao
By Tanguturi Prakasham Panthulu
By Kandukuri Venkata Satya Brahmacharya
By Tadanki Venkata Lakshmi Narasimha Rao
By John Holt
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 Tadanki Venkata Lakshmi Narasimharao
By Tripura
By Kousuru Rathnam
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