1. Studies in International Sociology;D.F. Alwin,1981
2. Bagozzi, R.P., and Yi, Y. (1991). On the use of structural equation models in experimental designs: Two extensions.International Journal of Research in Marketing 8:125?140.
3. Baird, L.L. (1988). Value added: Using student gains as yardstocks of learning. In C. Adelman (ed.),Performance and Judgement: Essays on Principles and Practice in the Assessment of College Student Learning (pp. 205?216). Washington, DC: United States Government Printing Office.
4. Dressel, P., and Mayhew, L. (1954).General Education: Explorations in Evaluation. Westport, CT: Greenwood Press.
5. Ecob, R. (1987). Applications of structural equation modeling to longitudinal educational data. In P. Cuttance and R. Ecob (eds.),Structural Equation Modeling by Example: Applications in Educational, Sociological, and Behavioral Research (pp. 138?159). Cambridge: Cambridge University Press.