By Rajuru Ramakrishna Reddy
Balala Science Vignanam
Dr. Nagasuri Venugopal
E.Natarajan
Mukthavaram Pardhasaradhi
S.A.Warner
L.Landow And Y.Rumer
M.Stoliar And L.Fomin (Translated By K.V.S.Gnaneswara Rao)
Rajuru Ramakrishna Reddy
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