1. 1) Joyce, D.; Dermot, G.; Martin, S. Vehicle Ownership and Income Growth, Worldwide: 1960-2030. 2007, vol. 28, no. 4, p. 143-170. http://www.jstor.org/stable/41323125, (accessed 2015-11-23).
2. 2) Jeddah Municipality. “Jeddah Strategic Plan”. Jeddah Municipality. http://www.jeddah.gov.sa/strategy, (accessed 2010-06-28). [in Arabic]
3. 3) Jeddah Municipality. “Historical Places”. Jeddah Municipality. https://www.jeddah.gov.sa/Jeddah/HistoricalPlaces/Wall/index.php, (accessed 2015-09-10). [in Arabic]
4. 4) Abu-Ghazzeh, T. M. Built Form and Religion: Underlying Structures of Jeddah Al Qademah. TraditionalDwellings and Settlements Review. 1994, vol. 5, no 2, p.49-55. http://iaste.berkeley.edu/tdsr5_2.htm, (accessed 2013-03-16).
5. 5) Soliman, M. Sustainable Development Between Piecemeal and Urban Based Conservation: Case Study of Jeddah. International Journal of Academic Research. 2010, vol. 2, no. 5, p.284-291. http://www.ijar.lit.az,(accessed 2010-12-03).