1. Ahmavaara, Y., 1954. Transformation analysis of factorial data. Ph.D. Thesis. Ann. Acad. Sci. Fenn. Ser. B 88.
2. An Introduction to Multivariate Statistical Analysis;Anderson,2003
3. Anderson, T.W., Rubin, H., 1956. Statistical inference in factor analysis. In: Neyman, J. (Ed.), Proceedings of the Third Berkeley Symposium on Mathematical Statistics and Probability, vol. V. University of California Press, Berkeley, Los Angeles, CA, pp. 111–150.
4. Structural Equations with Latent Variables;Bollen,1989
5. Statistical Regression with Measurement Error;Cheng,1999