Basu, R. (2011). Fit sigma: A lean approach to building sustainable quality beyond Six Sigma. Wiley.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBasu, Ron. Fit Sigma: A Lean Approach to Building Sustainable Quality Beyond Six Sigma. Chichester: Wiley, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBasu, Ron. Fit Sigma: A Lean Approach to Building Sustainable Quality Beyond Six Sigma. Wiley, 2011.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.