1. POKA-YOKI (Zero-Defects Design);Shingo,1989
2. The Competitiveness Edge: Research Priorities for U.S. Manufacturing;National Research Council,1990
3. A three-phase model for quality;Scott;Qual. Mag.,1991
4. Assessing machine performance;Park;Am. Mach,,1992
5. OK isn't not enough;Shainin;Qual. Mag.,1990