Borg Walter R <br/><br/>
Educational research: An introducation 

 - 4 
 - New York, USA  Longman   1983 
 - xxv, 936p. 
<br/><br/><label>ISBN: </label>0-582-28246-2 
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational Research