Lamparello, Adam
The United States Supreme Court's assault on the Constitution, democracy and the rule of law
NY Routledge, 2017
 Buku Teks
Lippincott, Isaac
Economic development of the United States
Appleton Century Croffs, 1933
 Buku Teks
Higher education in the United States
edited by Mary Irwin
American Council on Education, 1956
 Buku Teks
Dessy Raufiana Pramita
Kebijakan voter ID di Pennsylvania Amerika Serikat tahun 2011-2012 = Voter identification policy in pennsylvania united states of america year 2011-2012
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2014
 UI - Skripsi Membership
Weyl, Walter E.
The new democracy : an essay on certain political and economic tendencies in the United States
Harper & Row, 1964
 Buku Teks