1. Mathis TL: What Can Safety Learn from Lean? June 18, 2012. Available at http://ehstoday.com/safety/what-can-safety-learn-lean.
2. Toyota: Toyota Production System Basic Handbook. Art of Lean, Inc. Available at http://www.artoflean.com/files/Basic_TPS_Handbook_v1.pdf.
3. Safety management in a manufacturing company: six sigma approach;Ateekh-ur-Rehman;Engineering,2012
4. ABC of Patient Safety;Sandars,2007
5. Patient safety executive walkarounds;Graham,2005