Gregg, Pauline, author
George G. Harrap, 1967
Buku Teks
Plumb, J.H. (John Harold), 1911-, author
Penguin Books , 1951
Buku Teks
Trevelyan, George Macaulay, 1876-1962, author
Longmans, Green, 1951
Buku Teks
Thomson, David, author
Penguin Books , 1950
Buku Teks
Trevelyan, George Macaulay, 1876-1962, author
Longmans, Green, 1945
Buku Teks