Richter, David H., 1945-, author
Wiley Blackwell, 2017
Buku Teks
Walsh, Linda, author
John Wiley & Sons, 2017
Buku Teks
Plumb, J.H. (John Harold), 1911-, author
Penguin Books, 1963
Buku Teks
Willey, Basil, author
Penguin Books, 1962
Buku Teks
Trevelyan, George Macaulay, 1876-1962, author
Longmans, Green, 1951
Buku Teks