Konstantin I: Béda antara owahan

* [[Ammianus Marcellinus]]

* [[Gapura Konstantin]], [[gapura kemenangan]] menuju kemenangan di [[Pertempuran Jembatan Milvian|Jembatan Milvian]].

* [[Pergeseran Konstantin]]

* [[Sumbangan Konstantin]]

* [[Donatis]]

* [http://www.geocities.com/Heartland/Valley/8920/European/edictofmilan.htm ''The Edict of Milan AD 313'']

* Letters of Constantine: [http://www.seanmultimedia.com/Pie_Constantine_The_Great_Letters_1.html Book 1], [http://www.seanmultimedia.com/Pie_Constantine_The_Great_Letters_2.html Book 2], & [http://www.seanmultimedia.com/Pie_Constantine_The_Great_Letters_3.html Book 3]

* [http://www.roman-emperors.org/conniei.htm RomanEmperors.org ''Vita'' of Constantine]; dengan bibliografi

* [http://odur.let.rug.nl/~drijvers/ammianus/ Ammianus Marcellinus on-line project]

* [http://www.anders.com/lectures/lars_brownworth/12_byzantine_rulers/ 12 Byzantine Rulers] oleh Lars Brownworth dari [[Stony Brook School]] (kelas 7-12). kuliah audio 40 menit tentang Konstantin.

* [http://88.1911encyclopedia.org/C/CO/CONSTANTINE_I_.htm Constantine I] dalam [[Encyclopædia Britannica]] 1911

* [http://www.constantinethegreatcoins.com/ ''Constantine the Great''] Situs tentang Konstantin Agung dan mata uang perunggunya yang menekankan sejarah dari mata uang, dengan banyak sumber termasuk bagian belakangnya serta terjemahan tulisannya.

* [http://www.bbc.co.uk/northyorkshire/i_love_ny/history/romans/ Situs BBC North Yorkshire tentang Roman York, Yorkshire dan Constantine the Great]

* [[Ancient History]]

* [[Eric Robertson Dodds|Dodds, Eric Robertson]], ''The Greeks and the Irrational'', University of California, 1964.

* Dodds, Eric Robertson, ''Pagan and Christian in an Age of Anxiety: Some Aspects of the Religious Experience from Marcus Aurelius to Constantine'', Cambridge, 1965.

* MacMullen, Ramsay, ''Constantine'', [[Dial Press]], 1969.

* MacMullen, Ramsay, ''Christianizing the Roman Empire A.D. 100-400'', Yale, 1984.

* MacMullen, Ramsay, ''Changes in the Roman Empire: Essays in the Ordinary'', Princeton, 1990.

* MacMullen, Ramsay, ''Enemies of the Roman Order: Treason, Unrest, and Alienation'', Harvard, 1966.

* Odahl, Charles Matson, ''Constantine and the Christian Empire'', Routledge, 2004.

* Wilken, Robert L., ''Christians As the Romans Saw Them'', Yale, 1984

* [[Eusebius of Caesarea]], ''The Life of the blessed Emperor Constantine'' 4 jilid, dari 306 hingga 337.

* [http://www.1911encyclopedia.org ''Encyclopaedia Britannica'' 1911:] Constantine

* [[Lactantius]], (240-320) ''Of the Manner the in Which the Persecutors Died'',

* [http://www.newadvent.org/cathen/04295c.htm "Constantine the Great"], oleh [[Charles George Herbermann|Charles G. Herbermann]] and Georg Grupp. ''The Catholic Encyclopedia'' (1908)

* [http://www.newadvent.org/cathen/05121a.htm "Donatists"], oleh John Chapman. ''The Catholic Encyclopedia'' (1909)

* Sources on the Antonine Plague

** [[Galen]], ''On the Natural Faculties''

** [[Marcus Cornelius Fronto]], ''Letters of Marcus Cornelius Fronto''

* Vlassis R. Rassias, ''Es Edafos Ferein'', edisi ke-2, Athens, 2000, ISBN 960-7748-20-4