State Council of Educational Research and Training, Government of Kerala <br/><br/>
Social sciences : standard X( Kerala reader ) 
State Council of Educational Research and Training, Government of Kerala 
 -  State Council of Educational Research and Training, Government of Kerala 
<br/><br/> 	School text book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>	Social sciences
<br/><br/><label>Dewey Class. No.: </label>300  / KER