Gangadharan Nair, R. <br/><br/>
Vaypedara samghangal  Ghatanayum pravarthanavum / 

 - Thiruvananthapuram :  Kerala Bhasha Institute ,  2004. 
 - 328 p.  21cms 
<br/><br/><label>ISBN: </label>817638441x 
<br/><br/><label>Subjects--Index Terms: </label>Co-operation