Umman M. A. <br/><br/>
Bhooparishkaranangalum samoohika sampathika parivarthanavum Keralathil / 
by Umman M. A. 
 - Thiruvananthapuram :  State Institute of Languages,  1972. 
<br/><br/><br/>In Malayalam 
<br/><br/><label>Subjects--Index Terms: </label>Kerala Sociology