Endnotes

1.	Hiroyuki Hirano, 5 Pillars of the Visual Workplace: The Sourcebook for 5S Implementation (Portland, OR: Productivity Press, 1990), pp. 2531.
2.	James P. Womack, Daniel T. Jones, Daniel Roos, The Machine That Changed the World: The Story of Lean Production (New York: Harper-Collins, 1991).
3.	Taiichi Ohno, Toyota Production System: Beyond Large-Scale Production (New York: Productivity Press, 1988).
4.	Op cit Hirano, pp. 1318.