Wilkinson <br/><br/>
Methodology and Techniques of Social Research 

 - Mumbai:  Himalaya publishing House;  1977. 
 - 444p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education<br/>تعليم
<br/><br/><label>Dewey Class. No.: </label>370  / WIL/M