1. Sutherland, J., et al.:
http://www.agilemanifesto.org
2. Sutherland, J., et al.:
http://agilemanifesto.org/principles.html
3. Beck, D.E., Cowan, C.: Spiral Dynamics: Mastering Values, Leadership and Change. Wiley-Blackwell, Hoboken (2005). ISBN: 978-1-4051-3356-2
4. Total Quality Management: Guide to Management Principles, London, England: British Standards Institution (1992). ISBN 9780580211560, OCLC 655881602, BS 7850
5. Electronic Components Committee: Guide to Total Quality Management (TQM) for CECC-Approved Organizations, Brussels, Belgium: European Committee for Electrotechnical Standardization, CECC 00 806 Issue 1 (1994)