1. L. A. Aday, R. Anderson, and G. V. Fleming,Health Care in the United States, Equitable for Whom?, Beverly Hills: Sage, 1980.
2. Internal Working Paper;Tavs Andersen,1987
3. Jan Blanpain, Bjorn Lindgren, and Simone Sandier,Comparaisons Internationales des Systèmes de Santé, Centre de Recherche, d'Etude et de Documentation en Economie de la Santé, Paris, 1985.
4. Z. J. Brzezinski,Mortality in the European Region, World Health Organisation, Regional Office for Europe, Copenhagen, 1985.
5. Mark R. Chassin,et al, “Variations in the Use of Medical and Surgical Services by the Medicare Population,”The New England Journal of Medicine, Vol. 314, No. 5, January 30, 1986.