Kandil, Hazem, author
Oxford University Press, 2016
eBooks
Saikal, Amin, author
Westview Press, 1991
Buku Teks
Dolbeare, Kenneth M., author
D.C. Heath, 1985
Buku Teks
edited by G. John Ikenberry
Cambridge University Press, 2014
Buku Teks
Wang, James C.F., author
Prentice-Hall, 1994
Buku Teks