By I.Y.R.Krishna Rao
By Bonigala Ramarao
By Chekuri Ramarao
By G.V.Krishna Rao
By Brahmasri Chaganti Koteswara Rao Sarma
By Aribandi Prasada Rao
By Galinaa Nikolayeva , Atluri Picheshwara Rao
By Padmasri Thurlapati Kutumbarao
By Dr. K Aravinda Rao
By Dr Alla Apparao
By A.S.Neel (Translated By Sunkara Ramachadra Rao)
By Challa Lakshmanrao
By Dr R B Kumar , Ranganatha Ramachandrarao
By P.M.Sundara Rao
By Mellacheruvu Venkata Subrahmanya Sastri
By Oddiraju Muralidhararao
By Dr Ranganatha Ramachandra Rao , Dr Sharankumar Limbale S Marati
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