1. Public Investment and Partnership between the Public and Private Sectors, Economic Issues Series, No.40;Aketobi;International Monetary Fund,2007
2. OECD report, see link: www.oecd.org/globalrelations/oecd_arabe_web.
3. United Nation, (1998)“ Public-Private Partnership: A new Concept for Infrastructure Development, Economic Commission for Europe, New York, P3 .
4. Harry Anthony Patrinos, 2009, page (31).
5. Dr. Adel Mahmoud Al-Rasheed: Partnership Management between the Public and Private Sectors (Concepts – Models – Applications) Cairo, Arab Organization for Development Partnership between the public and private sectors as a tool for achieving sustainable administrative development, 2nd edition, 2007, p. 3.