Coba jelasin Karya dari Fred Donner dong

The Early Islamic Conquests (Princeton University Press; 1981)

The History of al-Tabari (Vol. 10): The Conquest of Arabia (State University of New York Press; 1993)  (translation)

Narratives of Islamic Origins: The Beginnings of Islamic Historical Writing (Darwin Press; 1998)

Muhammad and the Believers. At the Origins of Islam (Harvard University Press; 2010)