1.
Economics - LibGuides at University of Exeter. https://libguides.exeter.ac.uk/EconomicsHomePage.
2.
Ashenfelter, O., Levine, P. B. & Zimmerman, D. J. Statistics and Econometrics: Methods and Applications. (Wiley, 2003).
3.
Angrist, J. D. & Pischke, J.-S. Mastering Metrics: The Path from Cause to Effect. (Princeton University Press, 2015).
4.
Mostly harmless econometrics : an empiricist’s companion. (Princeton University Press, 2009).