Yin,Robert K. <br/><br/>
Case Study Research:  Design and Methods/ 
Robert K.Yin 
 - 4th ed. 
 - Los Angeles:  SAGE,  2009. 
 - ix,219p.:  bib.,index;  23 cm. 
 - Applied Social research Methods Series  vol.5 .
<br/><br/><label>ISBN: </label>9781412960991 
<br/><br/><label>Subjects--Index Terms: </label>Research Methodology 
<br/><br/><label>Dewey Class. No.: </label>001.42  / YIN