1. Al-Azzawi, M. (2004) “Factors Affecting Pedestrian Walking Speeds.” A Ph.D. Thesis, Napier University.
2. Retrieved from http://researchrepository.napier.ac.uk/2749/1/AlAzPhD406626.pdf 5.09.2014.
3. Fruin, J.J. (1987) Pedestrian Planning and Design, Revised Edition, Elevator World, Inc., Alabama.
4. Fruin, J.J., (1971) Pedestrian Planning and Design, Metropolitan Association of Urban Designers and Environmental Planners, New York.
5. Hall, E.T. (1990) The Hidden Dimension, Anchor Books Edition (Doubleday), New York, USA.