9/11 Final Report of the National Commission (2004). "We have some planes"(PDF). p. 19. Archived(PDF) from the original on September 12, 2017. Retrieved August 12, 2021.
9/11 Final Report of the National Commission (2004). Collapse of WTC2(PDF). Archived(PDF) from the original on September 12, 2017. Retrieved August 12, 2021.
Federal Bureau of Investigation (September 21, 2001). "Interview with Gail Jawahir"(PDF). Intelfiles. Archived from the original(PDF) on October 26, 2008. Retrieved October 23, 2008.
Noah, Klersfeld; Nordenson, Guy; Associates, and; (Firm), L.Z.A. Technology (January 3, 2008). World Trade Center emergency damage ... Structural Engineers Association of New York. Archived from the original on September 7, 2021. Retrieved August 8, 2010.
Corley, Gene; Federal Insurance And Mitigation Administration, United States; Region Ii, United States. Federal Emergency Management Agency; O'Mara, Greenhorne (May 2002). World Trade Center building ... Federal Emergency Management Agency, Federal Insurance and Mitigation Administration. ISBN978-0160673894. Archived from the original on September 7, 2021. Retrieved August 8, 2010.
Shane 2009. Shane, J.M. (2009). "September 11 Terrorist Attacks Against the United States and the Law Enforcement Response". In Haberfeld, M.R.; von Hassell, Agostino (eds.). A New Understanding of Terrorism. pp. 99–142. doi:10.1007/978-1-4419-0115-6_7. ISBN978-1441901149.
egoplex.com
intelfiles.egoplex.com
Federal Bureau of Investigation (September 21, 2001). "Interview with Gail Jawahir"(PDF). Intelfiles. Archived from the original(PDF) on October 26, 2008. Retrieved October 23, 2008.
NISTb 2005. Building and Fire Research Laboratory (September 2005). Visual Evidence, Damage Estimates, and Timeline Analysis(PDF). National Institute of Standards and Technology (Report). United States Department of Commerce. Archived(PDF) from the original on September 11, 2021. Retrieved August 24, 2021.
9/11 Final Report of the National Commission (2004). "We have some planes"(PDF). p. 19. Archived(PDF) from the original on September 12, 2017. Retrieved August 12, 2021.
Noah, Klersfeld; Nordenson, Guy; Associates, and; (Firm), L.Z.A. Technology (January 3, 2008). World Trade Center emergency damage ... Structural Engineers Association of New York. Archived from the original on September 7, 2021. Retrieved August 8, 2010.
Corley, Gene; Federal Insurance And Mitigation Administration, United States; Region Ii, United States. Federal Emergency Management Agency; O'Mara, Greenhorne (May 2002). World Trade Center building ... Federal Emergency Management Agency, Federal Insurance and Mitigation Administration. ISBN978-0160673894. Archived from the original on September 7, 2021. Retrieved August 8, 2010.
9/11 Final Report of the National Commission (2004). Collapse of WTC2(PDF). Archived(PDF) from the original on September 12, 2017. Retrieved August 12, 2021.
NISTb 2005. Building and Fire Research Laboratory (September 2005). Visual Evidence, Damage Estimates, and Timeline Analysis(PDF). National Institute of Standards and Technology (Report). United States Department of Commerce. Archived(PDF) from the original on September 11, 2021. Retrieved August 24, 2021.