4. "Value Methodology Standard and Body of Knowledge", SAVE International, june (2007). 5. Omigbodun A., Value engineering and optimal building projects, Journal of Architectural Engineering 7 (2) (2001) 40-43. 6. Dell’Isola A., Value Engineering: Practical Applications for Design Construction, Maintenance & Operations, John Wiley & Sons Inc., New Jersey, USA (1997) xxii. 8. Rieben E.H., "The Geology of the Tehran Plain", Am. J. Sci. Vol. 253 (1955) 617-639. 9. JICA "The study of seismic microzonation of the greater Tehran Area in the Islamic epublic of Iran. Draft final report in 3 Volumes. Japan International Cooporation Agency (JICA) and Center for Earthquake and Enviromental Studies of Tehran (CEST) Tehran Municipilaty", Pacific Consultant International (PCI) and OYO corporation (2000). 10. Brinkgreve R.B.J., Vermeer P.A. "Manual of Plaxis 3D Tunnel", Rotterdam: A.A. Balkema (2001).