Trevelyan, George Macaulay, 1876-1962, author
Longmans, Green, 1945
Buku Teks
Bindoff, S.T., author
Penguin Books, 1951
Buku Teks
Lavell, C.F., author
Macmillan, 1919
Buku Teks
Sichel, Edith
Oxford University Press, 1959
Buku Teks
Berenson, Bernard, 1865-1959, author
World Publishing, t.th.
Buku Teks