- https://www.britannica.com/biography/Osama-bin-Laden
- https://www.cnn.com/2019/09/14/politics/hamza-bin-laden-al-qaeda-dead/index.html
- https://www.businessinsider.com/haunting-photos-from-september-11th-attacks-2016-9
- https://www.theatlantic.com/photo/2011/09/911-the-day-of-the-attacks/100143/
- https://abc7news.com/tsa-releases-new-video-911-calls-from-september-11-attacks/4215478/
- https://www.youtube.com/watch?v=mhROd7Jt3-w
- https://www.india.com/buzz/911-attacks-rare-footage-video-not-suitable-for-children-146508/
