PANDE P. AND HOLPP L. WHAT IS SIX SIGMA ?/ Textual Documents - 17-09-2010. - TATA MC GRAW HIL EDU.PVT.LTD.NEW DELHI - VIII/87 23*15 14587 ISBN: 978-0-07-048632-4 Subjects--Index Terms: SOFTWARE TESTING and QUALITY ASSURANCE (B.E.-II) Dewey Class. No.: 001.3 / PAN/HON