By Stephen Hawking (Translated By Vijaya Kumar, A.Gandhi)
Butte Verabadra Daivagna
M K Viswanath
Nemani Sri Rama Sastry Siddhanthi
Sivala Subrahmanyam
Mohan Publications
Putcha Srinivasa Rao
K.Atchi Reddy
Sri Alluri Vedachala Josyulu
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