* Ostrogorski, G.; History of the Byzantine State, Rutgers University Press (July 1986)* Treadgold, W. A History of the Byzantine State and Society, Stanford University Press; 1 edition (1 November 1997)* Gregory, T., A History of Byzantium (Blackwell History of the Ancient World), Wiley-Blackwell (11 March 2005)==External links==
1884* Treadgold, W. A History of the Byzantine State and Society, Stanford University Press; 1 edition (November 1, 1997)* Gregory, T., A History of Byzantium (Blackwell History of the Ancient World), Wiley-Blackwell (March 11, 2005)