History of Agatha Christie

https://www.biography.com/writer/agatha-christie https://www.notablebiographies.com/Ch-Co/Christie-Agatha.html#:~:text=The%20daughter%20of%20an%20American,read%20at%20five%20years%20old. https://www.marketplace.org/2020/09/28/agatha-christie-mysteries-still-raking-the-cash-100-years-later/ https://agathachristie.fandom.com/wiki/Frederick_Miller