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Dyfyniad Arddull ChicagoDemery, Lionel, Marco A. Ferroni, and Christian Grootaert. Understanding the Social Effects of Policy Reform. Washington, D.C: World Bank, 1993.
Dyfyniad MLADemery, Lionel, et al. Understanding the Social Effects of Policy Reform. World Bank, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.