Muller, Herbert J., author
Harper & Row, 1963
Buku Teks
Gilbert, Erik, author
Pearson Educational, 2004
Buku Teks
Sansom, George Bailey, Sir, 1883-1965, author
The Gresset Press, 1950;1950;1950
Buku Teks
Sansom, George Bailey, Sir, 1883-1965, author
The Creasst Press, 1950
Buku Teks
Rivkin, Arnold
Frederick A.Praeger Publishers, 1962
Buku Teks