1.
Economics - LibGuides at University of Exeter. https://libguides.exeter.ac.uk/EconomicsHomePage
2.
Ashenfelter O, Levine PB, Zimmerman DJ. Statistics and Econometrics: Methods and Applications. Wiley; 2003.
3.
Angrist JD, Pischke JS. Mastering Metrics: The Path from Cause to Effect. Princeton University Press; 2015.
4.
Mostly Harmless Econometrics : An Empiricist’s Companion. Princeton University Press; 2009. http://encore.exeter.ac.uk/iii/encore/record/C__Rb1846953?lang=eng