By D.S.Triphonov
Dr. G.Vijayam (Nobel Scientists)
Swathi Book House
S.Venkatrao
M.Stoliar And L.Fomin (Translated By K.V.S.Gnaneswara Rao)
Polisetty Brothers
Naramaala Hanumantharao
Dr. Nagasuri Venugopal
Nanduri Seshacharya
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