Angrist, Joshua D., and Jörn-Steffen Pischke. n.d. Mostly Harmless Econometrics: An Empiricist’s Companion. Princeton: Princeton University Press. https://ebookcentral.proquest.com/lib/bilibrary/detail.action?docID=5710107.
‘Compendium of Articles’. n.d.
Gerber, Alan S., and Donald P. Green. n.d. Field Experiments: Design, Analysis, and Interpretation. New York: Norton.
Imbens, Guido W., and Donald B. Rubin. 2015. Causal Inference for Statistics, Social, and Biomedical Sciences: An Introduction. Cambr.