1. AASHTO (2018) A Policy on Geometric Design of Highways and Streets. 6th edn, American Association of State Highway and Transportation Officials. 6th edn. Washington DC: AASHTO. Available at: www.transportation.org.
2. Reviewed work: Greater London Plan, 1944 by Patrick Abercrombie;ACO;The Geographical Journal,1946
3. A city is not a tree;Alexander;Architectural Forum,1965
4. Notes on synthesis of form;Alexander,1966
5. A new theory of urban design;Alexander,1987