Cohen Louis <br/><br/>
Research method in education 

 - 2 
 - London, UK  Routledge  1989 
 - 383p 
<br/><br/><label>ISBN: </label>0-415-03648-8 
<br/><br/><label>Source: </label>Textbook 
<br/><br/><label>Dewey Class. No.: </label>001.42, COH