• W. H. Greene, Econometric Analysis (5th ed.), Pearson, 2008, Chapters 9, 15-16, 23-25.

Additional material is contained in:

• A. C. Cameron and P. K. Trivedi, Microeconometrics. Methods and Applications, Cambridge University Press, 2005.

• J. M. Wooldridge, Econometric Analysis of Cross Section and Panel Data, MIT Press, 2002.