1. G. Taguchi, Introduction to Quality Engineering, Asian Productivity Organization, 1986.
2. G. Taguchi, Systems of Experimental Design, Unipub Kraus International Publishers, New York, 1987.
3. The design of optimum multifactorial experiments;Plackett;Biometrica,1946
4. N. Logothetis, Managing for Total Quality, Prentice-Hall, UK, 1992.
5. Alternatives to fractional experimentation: an assessment and critique;Logothetis;Total Qual. Mgmt.,1990