Burckhardt, Jacob, 1818-1897
The age of Constantine the great / Jacob Burckhardt
Doubleday & Company, 1956
 Buku Teks
Burckhardt, Jacob, 1818-1897
The Civilization of the renaissance vol. 2 / Jacob Burckhardt /The civilization of the Renaissance in Italy vol 2
Harper & Row Publisher, 1958.
 Buku Teks
Barnouw, Adriaan Jacob
Monthly letters on the culture and history of the Netherlands / Adriaan Jacob Barnouw
Van Gorcum & Comp. N.V., 1969
 Buku Teks
Montagu, Mary Wortley
Letters
Knopf, 1992
 Buku Teks
Lewis, C.S.
The screwtape letters
The Centenary Press, 1946
 Buku Teks