"Bernard, H Russell" <br/><br/>
Social research methods: qualitative and quantitative approaches 

 - New Delhi  Sage  2013 
 - 789p. 
<br/><br/><label>ISBN: </label>9781412978545 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences-Research-Methodology
<br/><br/><label>Dewey Class. No.: </label>300.72 BER 2nd ed