Creswell, John W., <br/><br/>
Research design :  qualitative, quantitative, and mixed methods approaches / 
John W. Creswell, Department of Family Medicine, University of Michigan, J. David Creswell, Department of Psychology, Carnegie Mellon University. 
 - Fifth edition. 
 - xxv, 275 pages ;  25 cm. 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/><label>ISBN: </label>9781506386768  RM269.15 9781506386768  RM255.53 9781506386768  RM297.00 (PPUKM). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research--Methodology.<br/>Social sciences--Statistical methods.