Churchill, Winston, Sir, 1874-1965, author
Dodd, Mead, 1958
Buku Teks
Williams, E.N., author
Allen Lane, 1980
Buku Referensi
Ashton, Robert
Weidenfeld and Nicolson, 1979
Buku Teks
Trevelyan, George Macaulay, 1876-1962, author
Longmans, Green, 1950
Buku Teks
Powell, Edward, author
Oxford University Press, 1989
Buku Teks