Sundquist, James L
Dynamics of the party system: alignment realignment of political parties in the United States/ James L. Sundquist
The Brooking Institution, 1973
 Buku Teks
Simpser, Alberto
Why governments and parties manipulate elections: theory, practice, and implications
Cambridge University Press, 2013
 eBooks
The 2004 Indonesian elections: How the system works and what the parties stand for: a report on political parties
 Artikel Jurnal
Higher education in the United States
edited by Mary Irwin
American Council on Education, 1956
 Buku Teks
UK (United Kingdom) political parties since 1945 / edited by Anthony Seldon
edited by Anthony Seldon
Philip Allan, 1990
 Buku Teks