Isaacs, Harold R.
Macmillan, 1947
Buku Teks
edited by Raphael Israeli
Curzon Press, 1989
Buku Teks
Nayar, Baldev Raj, author
Cambridge, 2003
Buku Teks
Detter, Ingrid, author
Darmouth, 1994
Buku Teks
Lewis, William Arthur, 1915-, author
Princeton University Press, 1978
Buku Teks