Charlesworth, M.P.
Roman empire
Oxford University Press, 1951
 Buku Teks
Cultural identity in the Roman empire
edited by Ray Laurence, Joanne Berry
Routledge, 1998
 Buku Teks
Gibbon, Edwards
Decline and fall of the Roman empire
New York : The Modern Library, [t.th].
 Buku Teks
Rives, James B.
Religion in the roman empire
Blackwell, 2007
 Buku Teks
Zoffer, Gerald R.
Economic sanity or collapse : including the Roman-Loebl approach to economics
McGraw-Hill, 1980
 Buku Teks