Sen, S. N. <br/><br/>
Sasthram Indiayil :  Oru samksipta charithram tr Vishnu Narayanan Namboothiri, Etc / 

 -  1977. 
 -  4966c22cms 
 - Kerala Bhasha Institute Prasidheekaranam. .
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<br/><br/><label>Subjects--Index Terms: </label>History India Science