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G. W. Imbens and D. B. Rubin, Causal inference for statistics, social, and biomedical sciences: An introduction. Cambr, 2015.
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J. D. Angrist and J.-S. Pischke, Mostly harmless econometrics: an empiricist’s companion. Princeton: Princeton University Press [Online]. Available: https://ebookcentral.proquest.com/lib/bilibrary/detail.action?docID=5710107
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A. S. Gerber and D. P. Green, Field experiments: design, analysis, and interpretation. New York: Norton.