Unithiri,N.V.P. (2008). Pracheena Bharatheeya Darsanam. Sahitya Pravarthaka Society Ltd.
Chicago Style aipamenaUnithiri,N.V.P. Pracheena Bharatheeya Darsanam. Kottayam: Sahitya Pravarthaka Society Ltd, 2008.
MLA aipamenaUnithiri,N.V.P. Pracheena Bharatheeya Darsanam. Sahitya Pravarthaka Society Ltd, 2008.
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