Arther, Jay <br/><br/>
Six sigma  instructor guide 

 - 2nd 
 - Delhi  Macmillan  2004 
 - 124p. 
<br/><br/>  
<br/><br/><label>ISBN: </label>1403923582 
<br/><br/><label>Dewey Class. No.: </label>658.568  / Ar788.SS