1. Adams R. W. (1989). Summary briefing of lease-financing for high expenditure public/private transportation projects . Off. of Tech. Asst. and Safety Urban Mass Transp. Admin. U.S. Department of Transportation Washington D.C.
2. Fishbein G. and Babbar S. (1996). “Private financing of toll roads.” RMC Disc. Paper Series No. 117 The World Bank Washington D.C.
3. Giglio J. M. (1996). “The new paradigm in financing transportation infrastructure.” ITS Quarterly Summer.
4. Gomez-Ibanez J. A. and Meyer J. R. (1991). Private toll roads in the United States: the early experience of Virginia and California . John F. Kennedy School of Govt. Harvard University Cambridge Mass.
5. Gomez-Ibanez J. A. and Meyer J. R. (1993). Going private: the international experience with transport privatization . Brookings Institution Washington D.C. A guide to public-private partnerships in infrastructure . (1993). Price Waterhouse New York N.Y.