Essama-Nssah, B. (2006). Propensity score matching and policy impact analysis: A demonstration in EViews. World Bank.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEssama-Nssah, B. Propensity Score Matching and Policy Impact Analysis: A Demonstration in EViews. Washington, D.C: World Bank, 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEssama-Nssah, B. Propensity Score Matching and Policy Impact Analysis: A Demonstration in EViews. World Bank, 2006.
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