Kerlinger, F.N. <br/><br/>
Foundations of Behavioral Research 

 - 2nd Ed.; 
 - New Delhi:  Surjeet,  1996. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research Methods
<br/><br/><label>Dewey Class. No.: </label>001.42  / KER