By Avasarala Ramakrishna Rao
By Dr Marella Sri Ramakrishna
By M.V.R.Sastry
By Voruganti Ramakrishna Prasad (Anu - Aatmasakshatkaram)
By Voruganti Ramakrishna Prasad
By M.K.Gandhi
By E.M.S.Nambudripad (Translated By Kambhampati Satyanarayana)
By P.M.Gopalachari
By M.Prabhavati Devi
By Brahmasri M.Satyanarayana Siddanti
By Paladugu Venkatrao
By Acharya Vakulabharanam Ramakrishna
By M.Venkateswara Rao
By M.Satyanarayana Siddanti (Mantra Sastralu - Mantralu - Yantralu)
By Dr Sankaramanchi Ramakrishna Sastry Sidhanthi
By Dr Sankaramanchi Ramakrishna Sastry C H D
By T V Sivarama Krishna
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