Creswell, John W., <br/><br/>
Research design :  qualitative, quantitative and mixed method approaches / 
John W. Creswell. 
 - Fourth edition, international student edition. 
 - xxix, 273 pages :  illustrations ;  26 cm. 
<br/><br/>Includes bibliographical references (pages 251-260) and indexes. 
<br/><br/><label>ISBN: </label>9781452274614 (pbk.)  RM194.98 1452274614 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research--Methodology.<br/>Social sciences--Statistical methods.