Abstract: . . . K.S. Stephens and A.B. Godfrey (1985). Modern methods for quality control and improvement , John Wiley & Sons. Wald . . . . . . Stephens and A.B. Godfrey (1985). Modern methods for quality control and improvement , John Wiley & Sons. Wald A. (1947). . . . . . . attributes, Other statistical process control techniques. Course book Tagaras G. (2001). Statistical quality control . . . --340,3,57,578,1699