Tooley, James, author
Continuum Studies Education Policy, 2000
Buku Teks
Fitria Nugrahani, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2015
UI - Tesis (Membership)
Smith, L. Glenn, author
Allyn and Bacon, 1973
Buku Teks
Williams, Gareth, author
PSI, [date of publication not identified]
Buku Teks
Allyn and Bacon, 1991
Buku Teks