Behrakis, T.E., Multiple Correspondence Data Analysis: methods and applications. Athens: (New Borders) A. A. Livani, 1999.
Frangos, C.K., Market Research Methodology and Data Analysis with the Application of the Statistical Package SPSS FOR WINDOWS. Athens: “Interbooks” Publications, 2004.
Gifi, A., Nonlinear Multivariate Analysis. Chichester: John Wiley and Sons, 1990.
Greenacre, M.J., Theory and Applications of Correspondence Analysis. New York: Academic Press, 1984.
Howitt, D., Gramer, D., Statistics with SPSS 11 and Windows. Athens: Klidarithmos, 2003.
Kailidis, D.S., Pollution of the Natural Enuironment, Second Edition. Thessaloniki: Christodoulidis Publications, 1991.
Lebart, L., Morineau, A., Warwick, K.M., Multivariate Descriptioe Analysis. New York: Wiley, 1984.
Leeuw, J. De, Rijckevorsel, J., “Homals and Princals - some generalizations of principal component analysis”, in: Diday, E., Escoufier, E., Lebart, L., Pages, J., Schektman Tomassone, Y. (eds.), Data Analysis and Informatics. Amsterdam: North-Holland, 1980.
Meulman, J., Homogeneity Analysis of Incomplete Data. Leiden: DSWO Press, 1982.
Nishisato, S., Analysis of Categorical Data: dual scaling and its applications. Toronto: University of Toronto Press, 1980.
Norusis, M.J., SPSS Adoanced Statistics 6.1. Chicago: SPSS Inc., 1994.
Siardos, G., Multivariate Statistical Analysis. IssueA'. Thessaloniki: Ziti Press, 1999.
Tenenhaus, M., Young, F.W., “An Analysis and Synthesis of Multiple Correspondence Analysis, Optimal Scaling, Dual Scaling, Homogeneity Analysis, and Other Method for Quantifying Categorical Multivariate Data”, Psychometrika, 50, pp. 91-119, 1985.
Tabachick, B.G., Fidell, L.S., Using Multiuariate Statistics. Second Edition. New York: Harper and Row. 1989.
Tsaliki, V., “Environmental Education Centers: Luxury or a Necessity?, A brief description and evaluation of the operation of environmental education centers in Greece”, in: Georgopoulos, A. (ed.), Enoironmental Education. Athens: Gutenberg, 2005.
Young, F.W., “Quantitative Analysis of Qualitative Data”, Psychometrika, 40, pp. 357-387, 1981.
Google Scholar