By Jammi Koneti Rao
By Ken Blanchard, Spencer Johnson And Translated By Pasupuleti Geeta
By Balabhadrpatruni Ramani
By Nanullapalli Bhaskararao , Mudunuru
By A.N.Jagannadha Sarma
By Tummalapalli Ramalingewararao
By Suravarapu Purushottama Sastry
By Dr. P.V.G. Mahadev
By Kappaganthu Ramakrishna
By Turlapati Kutumbarao
By Muttareddy Vengala Reddy
By Muthareddi Vengalareddi
By Dr Addanki Srinivas
By Tummalapalli Ramalingeswara Rao
By Paturi Sitaramanajaneyulu
By Thulluri Sitharama Haragopal
By D Srinivasa Dikshitulu
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