1- Lynch, k., 1960,''The Image Of the City'', The M.I.T. press, Cambridge, Massachusetts and London, England.
2- Moughtin, Cliff, 1992, ''Urban Design: street and square''.
3- Dr.Ali Raafat, 1996, "Triad of architectural activity, physical creativity in architecture".
4- Dr. Ayman A. Hamid, 2010,''Activating tools of time dimension in the design process'' Phd, Cairo University.