Hagan, Frank E., author
Nelson-Hall, 1989
Buku Teks
Schwartz, Martin D., author
Anderson , 2003
Buku Teks
Taylor, Ian R., author
Routledge, 1994
Buku Teks
Theresia Aurellia, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2013
UI - Skripsi (Membership)
Atkinson, Rowland, author
Routledge, 2019
Buku Teks