1. Long-term Strategy for Transport System in Asian Megacities;Morichi;Journal of the Eastern Asia Society for Transportation Studies,2005
2. Union International des Transports Publics. Millinium City Database for Sustainable Mobility. (CD-ROM), UITP. (2001).
3. Urban Transport, Environment and Equity: The Case for Developing Countries;Vasconcellos,2001
4. The Economist. Dream Machines, June 2. (2005).
5. OICA Online Statistics. International organization of Motor Vehicle Manufacturers. accessible at www.oica.net. (2006).