kumar, Ranjit <br/><br/>
Research methodology 

 - 4th 
 - New Delhi  Sage  2014 
 - 399 
<br/><br/><label>ISBN: </label>9789351501336 
<br/><br/><label>Standard No.: </label>118960 
<br/><br/><label>Subjects--Index Terms: </label>data collection Sampling 
<br/><br/><label>Dewey Class. No.: </label>001.42  / KUM