Avebury, 1995
Buku Teks
Rawls, John, author
Harvard University Press, 2003
Buku Teks
Rawls, John, author
Belknap Press of Harvard University, 1971
Buku Teks
Rawls, John, author
Harvard University Press, 2001
Buku Teks
Lisa Rahmadhani Utami, author
Fakultas Teknik Universitas Indonesia, 2017
UI - Tugas Akhir