By P K Sudarsan
Vadlamudi Venkateswara Rao
Mumjuluri Narasimha Rao
Voleti Ramanadha Sastry
P.M.Goapalachary
Adipudu Venkatasivasairam
Challa Madhava Sastry
S.R.Nuti (Short Predictive Theory)
P.M.Gopalachari (K.P.Reader-2)
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