Analysis of information sources in references of the Wikipedia article "بزرگراه" in Persian language version.
Chang, S.E. ; Nojima, N. (May 31-June 4) (PDF). Measuring Lifeline System Performance: Highway Transportation Systems in Recent Earthquakes بایگانیشده در ۲۷ مارس ۲۰۰۹ توسط Wayback Machine. Seattle, Washington, United States: Earthquake Engineering Research Institute. OCLC 80807812. Retrieved 2008-10-02.
Chang, S.E. ; Nojima, N. (May 31-June 4) (PDF). Measuring Lifeline System Performance: Highway Transportation Systems in Recent Earthquakes بایگانیشده در ۲۷ مارس ۲۰۰۹ توسط Wayback Machine. Seattle, Washington, United States: Earthquake Engineering Research Institute. OCLC 80807812. Retrieved 2008-10-02.
Chang, S.E. ; Nojima, N. (May 31-June 4) (PDF). Measuring Lifeline System Performance: Highway Transportation Systems in Recent Earthquakes بایگانیشده در ۲۷ مارس ۲۰۰۹ توسط Wayback Machine. Seattle, Washington, United States: Earthquake Engineering Research Institute. OCLC 80807812. Retrieved 2008-10-02.
Chang, S.E. ; Nojima, N. (May 31-June 4) (PDF). Measuring Lifeline System Performance: Highway Transportation Systems in Recent Earthquakes بایگانیشده در ۲۷ مارس ۲۰۰۹ توسط Wayback Machine. Seattle, Washington, United States: Earthquake Engineering Research Institute. OCLC 80807812. Retrieved 2008-10-02.