Scalapino, Robert A.
Democracy and the party movement in prewar Japan
University of California Press, 1953
 Buku Teks
Fuadil `Ulum
Kegagalan transformasi gerakan sosial menjadi partai politik: studi kasus upaya pembentukan partai politik alternatif oleh Konfederasi Pergerakan Rakyat Indonesia (KPRI) = Social movements transformation failure attempt of becoming political party: Case Study of KPRI (Indonesian People’s Movement Confederation) plan to form alternative party
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2020
 UI - Skripsi (Membership)
Siedman, Joel
Democracy in the labor movement
Labor Relation Cornel University, 1958
 Buku Teks
Ranney, Austin
Democracy and the American party system
Harcourt, Brace and Company, 1956
 Buku Teks
Nugroho Notosusanto
The Coup attempt of the September 30 Movement in Indonesia
Pembimbing Masa, 1967
 Buku Teks