Johnson, Burke. <br/><br/>
Educational research :  quantitative, qualitative, and mixed approaches / 
Burke Johnson, Larry Christensen. 
 - 4th ed. 
 - Los Angeles, CA :  SAGE,  c2012. 
 - xxvi, 621 p. :  ill. ;  27 cm. 
<br/><br/>Includes bibliographical references (p. 589-608) and index. 
<br/><br/><label>ISBN: </label>9781412978286 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Research.
<br/><br/><label>Dewey Class. No.: </label>370.72  / JOH 2012