Patten, Meldred L. <br/><br/>
Understanding research methods: an overview of the essentials 

 - 10th ed. 
 - New Delhi  Routledge  2018 
 - vi, 338p. 
<br/><br/><label>ISBN: </label> RS 18525.00 
<br/><br/><label>Dewey Class. No.: </label>001.42 PAT