GuilfordJoy Paul. Psychometric Methods, second edition. New York: McGraw-Hill, 1954.
2.
McClurePeter J. “An Analysis of Consumers’ Images of Major Appliances and Brands of Appliances in Terms of Four Forms of Segmentation,” unpublished doctoral dissertation, Indiana University, 1966.
3.
SiegelSidney. Nonparametric Statistics for the Behavioral Sciences.New York: McGraw-Hill, 1956, 166–72.
4.
WinerBenjamin J.Statistical Principles in Experimental Design.New York: McGraw-Hill, 1962, 136–8.