McDougall, Derek, author
Lynne Rienner , 1997
Buku Teks
edited by Stephan Haggard and Chung-In Moon
Westview Press, 1989
Buku Teks
Isaacs, Harold R.
Macmillan, 1947
Buku Teks
Yahuda, Michael, author
Routledge, 1996
Buku Teks
edited by Andrew T.H. Tan
Routledge, 2013
Buku Teks