Morton, A.L., author
Victor Gollancz, 1938
Buku Teks
Trevelyan, George Macaulay, 1876-1962, author
Longmans, Green, 1945
Buku Teks
Brockelmann, Carl, author
Routledge & Kegan Paul , 1950
Buku Teks
Chesterton, G. K. (Gilbert Keith), 1874-1936, author
Chatto , 1951
Buku Teks
Stephen, Sir James Fitzjames, author
Routledge/Thoemmes Press, 1996
Buku Teks