Lohithakshan, A K <br/><br/>
Paristhithi Niyamangal / 
Lohithakshan, A K 
 - 4 ed. 
 -  Kerala Bhasha Institute, Trivandrum,  2019 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental problems & services; Social problems & services
<br/><br/><label>Dewey Class. No.: </label>363.7 LOH.K-P4