Mahood, H.R.
Pressure groups in American politics
Scribner, 1967
 Buku Teks SO
Miller, Stephen
Special interest groups in American politics
Hindustan Publishing, 1985
 Buku Teks SO
New directions in comparative politics
edited by Howard J. Wiarda
Westview Press, 1985
 Buku Teks SO
Edie, Carlene J.
Politics in Africa : a new beginning?
Wadsworth/Thomson Learning, 2003
 Buku Teks SO
Quigley, Harold S.
The new Japan government and politics
University of Minnesota Press, 1956
 Buku Teks SO