Ravi Sankar S Nair <br/><br/>
Aarum vaaykaatha pusthakam engane ezhuthaam/ 
by Ravi Sankar S Nair 
 - 3rd ed. 
 - Kozhikode:  Atma books,  2023. 
 - 267p. 
<br/><br/><label>ISBN: </label>9789393969934 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research methods<br/>Research, evaluation, and scientific method<br/> Knowledge
<br/><br/><label>Dewey Class. No.: </label>M 001.42  / RAV/A