Tacitus, Cornelius
The annals of imperial Rome / Cornelius Tacitus; a new translated with an introduction by Michael Grant
Penguin Books, 1956
Buku Teks
Lavell, C.F.
Imperial England
Macmillan, 1919
Buku Teks
Elton, Lord
Imperial commonwealth
Collins, 1945
Buku Teks
The civilazation of rome
Buku Teks
Gasponi, Giancarlo
Rome revealed
Euroedit-Trento, 1995
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