Al-Qàhir (abbàssida): diferència entre les revisions

*[http://www.archive.org/details/eclipseofabbasid05ameduoft Henry Frederick Amedroz, David Samuel Margoliouth, Ibn Miskawayh, Ahmad ibn Muhammad, Rudhrawari, Abu Shuja Muhammad ibn al-Husayn, "''The eclipse of the Abbasid caliphate; original chronicles of the fourth Islamic century''", 1920]

*[http://www.archive.org/details/caliphateitsris00muirgoog W. Muir, The Caliphate: Its Rise, Decline and Fall, from Original Sources (1892)]