4Martha S. Hill. Panel Study of Income Dynamics: User's Guide. Sage Publications, 1991.
5J. Fitzgerald, P. Gottsehalk, R. Moffitt. An Analysis of Sample Attrition in Panel Data: The Michigan Panel Study of Income Dynamics. The Journal of Human Resources,1998.
6Seymour Sudman, Brian Wansink. Consumer Panels(2nd ed. ). American Marketing Association,2002.
7Cheng Hsiao. Analysis of Panel Data(2nd ed. ). Cambridge University Press, 2003.
8Leslie. Kish, [ 1965 ], Survey Sampling, New York: John Wiley & Sons.
9Xiaonian Xu and Yan Wang, [1997], Ownership Structure,Corporate Governance and Corporate Performance, The World Bank Policy Research Working Paper 1794.
10William H. Greene [ 1997 ], Econometric Analysis, PrenticeHall, Inc. pp632-635.