1. ABS Group, Inc. Root Cause Analysis Handbook: A Guide to Effective Incident Investigation 1999
2. Creativity As an Exact Science
3. Anderson , N. Wilcoxon , R. Framework for Prognostics of Electronic Systems Proceedings of International Military and Aerospace/Avionics COTS Conference 2004
4. ASQC Glossary and Tables for Statistical Quality Control American Society for Quality Control 1983