Gupta P <br/><br/>
Six sigma business scorecard 
Gupta P 
 - 2 
 - NEW  NEW, DELHI TATA McGaraw-HILL Publishing  2007 
 - 310p 
<br/><br/><label>ISBN: </label>978-0-07-065894-3 
<br/><br/><label>Source: </label>Textbook