References
- Ortuzar, J. D., & Willumsen, L. (2011). Modelling transport. New Jersey: Wiley.
- Richardson, A. J., Ampt, E. S., & Meyburg, A. H. (1995). Survey methods for transport planning. Parkville, Vic, AU: Eucalyptus Press.
- Zmud, J., Lee Gosselin, M., Munizaga, M., & Carrasco, J. A. (2013). Transport survey methods: Best practice for decision making. Emerald.