Hinde, Robert A.
Bending the rules : the flexibility of absolutes in modern life
Oxford University Press, 2008
 Buku Teks SO
Kode etik penyelenggara negara dalam mewujudkan Good Governance
 Artikel Jurnal
Boss, Judith A.
Ethics for life: a text with readings / Judith A. Boss
McGraw-Hill, 2004
 Buku Teks SO
Fuller, Lon L.
The morality of law
Yale University Press, 1974
 Buku Teks
Fuller, Lon L.
The morality of law
Yale University Press, 1964
 Buku Teks