Microeconomics
Mas-Collel, Andrew, Michael Whinston, and Jerry Green (MWG): Microeconomic Theory, Oxford University Press, 1995.
Chiang, Alpha, Fundamental Methods of Mathematical Economics, McGraw Hill, 1988.
Dixit, Avinash, Optimization in Economic Theory, 2nd edition, Oxford University Press, 1990.
Jehle, Geoffrey and Philip Reny, Advanced Microeconomic Theory, 3rd edition, Addison-Wesley, 2011.
Kreps, David, A Course in Microeconomic Theory, Princeton University Press, 1990.
Varian, Hal, Microeconomic Analysis, W. W. Norton and Company, 3rd edition, 1992.
Varian, Hal, Intermediate Microeconomics: A Modern Approach, 6th edition. Addison Wesley, 2003.
Macroeconomics
D. Bertsekas: Dynamic Programming and Optimal Control, Athena Scientific, 2005.
Blanchard, O. and S. Fisher: Lectures on Macroeconomics. MIT Press, 1989.
Ljungquist, Lars, and Thomas J. Sargent: Recursive Macroeconomic Theory. Cambridge: MIT Press, 2000.
George McCandles: The ABCs of RBCs: An Introduction to Dynamic Macroeconomic Models. Cambridge: Harvard University Press, 2008.
Stokey, Nancy L., Robert E. Lucas, Jr., and Edward C. Prescott: Recursive Methods in Economic Dynamics. Cambridge: Harvard University Press, 1989.
Statistics
Casella, G., and R.L.Berger (2002). Statistical Inference, Duxbury Press, Belmont, CA, 2nd edition.
Hogg, R.V., McKean J. and A. T. Craig (2012). Introduction to Mathematical Statistics, Prentice Hall, 7th edition.
Mood, A.M., Graybill F.A. and D.C. Boes (1974) Introduction to the Theory of Statistics, Mcgraw Hill Higher Education, 3rd edition.