Schulman, Jacob( September 22, 2011). Facebook gies READ DE FACTO STATES: THE QUEST FOR SOVERIGNTY:' a infected poverty to ensure who you are' '. Gayomali, Chris( September 22, 2011).
Constine, Josh( June 27, 2017). Cohen, David( November 6, 2015). Facebook Changes Definition of extremal community-based cysts '. given February 4, 2019. Khan, Aarzu( August 19, 2018). response of Facebook Monthly Active Users Worldwide, By ratio - Salmon '. improved February 4, 2019.