Research methodology in behavioural sciences 
Mangal, S.K. 
 -  PHI Learning Private Limited,  2013 
 - xxiii, 740 pages 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Research.
<br/><br/><label>Dewey Class. No.: </label>001.4 M2771 2013