Rawls, John, author
Harvard University Press, 2001
Buku Teks
Boulding, Kenneth E. (Kenneth Ewart), 1910-1993, author
Harper, 1963
Buku Teks
McCarthy, Stephen, author
Routledge, 2006
Buku Teks
Edward Peratenta, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2019
UI - Skripsi (Membership)
Jane Picford, editor
Cavendish Publishing , 2000
Buku Teks