1. Deming, W.E. (1986), Out of The Crisis, MIT Center For Advanced Engineering Studies, Cambridge.
2. International Organisation for Standardization (1994a), ISO 8402:1994 – Quality Management and Quality Assurance – Vocabulary, Geneva.
3. International Organisation for Standardization (1994b), ISO 9001:1994 Quality Systems: Model for Quality Assurance in Design, Development, Production, Installation and Servicing, Geneva.
4. International Organisation for Standardization (1994c), ISO 9000‐1:1994 Quality Management and Quality Assurance Standards, Geneva.
5. Mizuno, S. (1988), Company‐wide Total Quality Control, Asian Productivity Organisation, Tokyo.