1. Ayers J D and Moore K 1984Metall. Trans. A15 1117
2. Cochran W G, William G and Cox G M 1977Experimental design, (Bombay: Asia Publishing House)
3. Das M N and Giri N C 1986Design and analysis of experiments, (Hyderabad: Wiley Eastern Ltd.)
4. De Bruyn H E and Delft T H 1978Ann. CIRP 23 93
5. Erden A 1982International machine tool design and research conference, Manchester,23 pp 283