Pilla, G.R. <br/><br/>
Sahakaranavum Samuhya Vikasanavum 

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 - Trivandrum  State  Institute of languages  1970 
 - 520 p.   
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<br/><br/><label>Subjects--Index Terms: </label>Sahakaranavum Samuhya Vikasanavum 
<br/><br/><label>Dewey Class. No.: </label>334