Lerner, Max
America as civilazation life and thought in The United States today
Simon and Schuster, 1957
Buku Teks
Steenbeek, Rosita
Terug in Rome
Antwerpen, 2008
Buku Teks
Hadas, Moses
Imperial Rome
Time-Life Books, 1965
Buku Teks
Gasponi, Giancarlo
Rome revealed
Euroedit-Trento, 1995
Buku Referensi
Bailey, Cyril
The Legacy of Rome
Oxford University Press, 1951
Buku Teks