Abcarian, Gilbert, editor
Contemporary political system
Charles Seribner's, 1970
 Buku Teks
Schulte Nordholt, H.G.
The political system of the atoni of Timor
The Hague, 1971
 Buku Teks
The Australian political party system
by S.R. Davis ... [and others]
Angus and Robertson, 1954
 Buku Teks
The political
edited by David Ingram
Blackwell , 2002
 Buku Teks
the Presidency and the political system / Editor, Michael Nelson
CQ Pres, 2003
 Buku Teks