Burns, Edward McNall, 1897-1972, author
W.W Norton, 1984
Buku Teks
Toynbee, Arnold J., author
Oxford University Press, 1961
Buku Teks
McNeill, William H., author
University of Chicago Press, 1963
Buku Teks
Dean, Vera Micheles
The New American Library, 1960
Buku Teks
Dickinson, G. Lowes
George Allen & Unwin LTD, 1946
Buku Klasik