Kothari, C R <br/><br/>
Research methodology: Methods and techniques /3rd ed. 

 - 3rd  ed. 
 - New Delhi  New Age International Publishers  2014  
 - 449p  
<br/><br/><label>Subjects--Index Terms: </label>Processing and analysis of data  research methodology  
<br/><br/><label>Dewey Class. No.: </label>001.8  / KOT