Eisenstadt, Shmuel Noah
The Political systems of empires
Free Press, 1967
Buku Teks
Abcarian, Gilbert
Contemporary political system
Charles Seribner's, 1970
Buku Teks
Bluhm, William T.
Theories of the political system / William T. Bluhm
Prentice Hall of India, 1981
Buku Teks
Easton, David
The political system : an inquiry into the state of political science
Knopf, 1971
Buku Teks
Nordholt, H.G. Schulte
The political system of the atoni of Timor
The Hague, 1971
Buku Teks