1. Alwin, D. F., &Tessler, R. C. (1985). Causal models, unobserved variables, and experimental data. In H. M. Blalock (Ed.),Causal models in panel and experimental designs (pp. 55–88). New York: Aldine.
2. Bagozzi, R. P. (1977). Structural equation models in experimental research.Journal of Marketing Research,14, 209–226.
3. Bentler, P. M. (1980). Multivariate analysis with latent variables: Causal modeling.Annual Review of Psychology,31, 419–456.
4. Bentler, P. M. (1989).EQS structural equations program manual. Los Angeles: BMDP Statistical Software.
5. Blalock, H. M. (1985).Causal models in panel and experimental designs. New York: Aldine.