Vitalis, Robert, 1955-, author
New York Cornell University Press, 2015
Buku Teks
edited by G. John Ikenberry
Cambridge University Press, 2014
Buku Teks
Littlejohn, David
Grossman , 1966
Buku Teks
Couloumbis, Theodore A., author
Prentice-Hall, 1990
Buku Teks
Pinar Bilgin, L.H.M. Ling, editor
Routledge, Taylor & Francis Group, 2017
Buku Teks