^Harry Halén (1978). Handbook of oriental collections in Finland: manuscripts, xylographs, inscriptions and Russian minority literature, Issues 31-34. Curzon Press. p. 73. The leader of the Hebbar Iyengars, Krishnaiengar, had also died and instead they supported P. N. Krishnamurthi, the grandson of the great Purnaiya.
^Prasad, S Narendra (23 June 2015). "Revisiting days of yore". No. Bangalore. Deccan Herald. Retrieved 2 July 2015.