Deming, W. E. 1982: Out of the Crisis. Massachusetts Institute of Technology Central for Advanced Engineering Study. Cambridge. USA. Linkki kirjaan: https://www.laatutieto.fi/product_details.php?p=57Lähde; Qualit Knowhow Karjalainen Oy, KurssimateriaaliKakuro Amasaka, New JIT, New Management Technology Principle