Narayanan P V & Sreedevi K P. (2018). Professor S Venkatakrishnan smritirekhakal, krithikal,patanam. Pusthakabhavan.
Παραπομπή Chicago StyleNarayanan P V και Sreedevi K P. Professor S Venkatakrishnan Smritirekhakal, Krithikal,patanam. Kannur: Pusthakabhavan, 2018.
Παραπομπή MLANarayanan P V και Sreedevi K P. Professor S Venkatakrishnan Smritirekhakal, Krithikal,patanam. Pusthakabhavan, 2018.
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