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2. Hondeghem, Annie (Hg.), 1998: Ethics and Accountability in a Context of Governance and New Public Management, Amsterdam.
3. Lawton, Alan, 1998: Ethical Management for the Public Services, Buckingham, Philadelphia.
4. OECD, 2000: Trust in Government, Paris.
5. Wart, Montgomery van, 1998: Changing Public Sector Values, New York, London.