Sartori, Andrew, 1969-, author
Univercity of Chicago Press, 2008
Buku Teks
Bloomsbury Academic, 2014
Buku Teks
Baten, Joerg, author
Cambridge University Press, 2016
Buku Teks
Buzan, Barry, author
Cambridge University Press , 2015
Buku Teks
Nye, Joseph S., author
Essex Pearson, 2014
Buku Teks