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Lederman D., Loaza N., Soares R. R. Accountability and Corruption: Political Institutions Matter // World Bank Policy Research Working Papers — 2001 — No. 2708. [2]Архивная копия от 18 октября 2017 на Wayback Machine
Lederman D., Loaza N., Soares R. R. Accountability and Corruption: Political Institutions Matter // World Bank Policy Research Working Papers — 2001 — No. 2708. [2]Архивная копия от 18 октября 2017 на Wayback Machine