There is a book by antaTi narasimham titled "prabandhamulalO prakRti
varNana", published by samata saahiti of Hyderabad in 1979. This book
may be of interest to Sree PALANA and Sree Bapa Rao. This book is available
at the Center for Research Libraries in Chicago, IL with the call number:
81-901019 and may be obtained through interlibrary loan.
Regards,
paaNini