2Kahn, Alfred J. Social Policy and Social Services. New York: Random House, 1979.
3Kahn, Alfred J.& Sheila B. Kamerman. Social Services in International Perspectives: The Emergence of the Sixth System. New Brunswick: Transaction Books, 1980.
4Karger, Howard Jacob; Midgley, James; & Brown, C. Brene(Eds.) Controversial Issues in Social Policy. Boston: Allyn and Bacon, 2003.
5Leichsenring, K. "Providing integrated health and social care for older persons--a European overview". In Leichsenring, K. & Alaszewski. A. (eds), Providing integrated health and social care for older persons: a European overview of issues at stake. Ashgate: Aldershot. 2004.
6Leutz, W. "Five laws for integrating medical and social services: lessons from the US and UK". Milbank Quarterly, 77(1), 77-110,1999.
7Munday, Brian. Integrated social services in Europe. Strasbourg Cedex: Council of Europe Publishing, 2007.
8Nies, H. "Integrated care: concepts and background". In Nies, H & Berman, E (eds.) Integrating services for older people: a resource book for managers. Dublin:European Health Management Association, 2004.
9Pinker, Robert A. "social service". Encyclopedia Britannica Online, 2010. http://www.britannica.com.
10Spicker, Paul. Social policy: themes and approaches. London: Policy Press 2008.
