7E. S. Savas, Privatization: The Key to Better Government,Chatham: Chatham House,1987.
8Edward K. Morlok and Philip A. Viton,“The Comparative Costs of Public and Private Providers of Mass Transit,”in Urban Transit:The Private Challenge of Public Transportation, Charles A. Lave,ed. (Cambridge, Mass: Ballinger Publishing Co., 1985),233-253.
9Norman Sherlock and Wendell Cox, The Potential for Optimizing Public Transit through Competitive Bidding,Washington, D.C. : Urban Mass Transportation Administration, 1987.
10Keith Boyfield, Privatization: A Prize Worth Pursuing, London: European Policy Forum, 1997.
