Kerlinger, Fred N <br/><br/>
Foundations of Behavioural Research 

 - 2 ed. 
 - ND  :  Surjeet Publications,  2014 
 - 741p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research Methodology
<br/><br/><label>Dewey Class. No.: </label>300.72  / KER.F