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