Cohen, Louis, <br/><br/>
Research methods in education / 

 - Eighth edition. 
 - USA  Routledge N. Y.  2018 
 - xxvii, 916 pages ; 
<br/><br/><label>ISBN: </label>9781138209862 (hardback) 9781138209886 (paperback) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education