Bailey, Thomas Andrew, 1902-1983, author
Prentice-Hall, 1980
Buku Teks
Bemis, Samuel Flagg, 1891-1973, author
Holt, Rinehart and Winston, 1965
Buku Teks
Khan, Humayun, author
Roli Book, 2004
Buku Teks
Kedourie, Elie, author
Westview Press, 1987
Buku Teks
Jones, Howard Palfrey, author
Ayu Mas, 1977
Buku Teks