Maidment, Frederick
Business in government and society : ethical, international decision-making
Prentice-Hall, 1999
 Buku Teks
Maidment, Frederick
Business government and society: Ethical, International decision - making
Prentice-Hall, 2000
 Buku Teks
Readings in ethical theory / selected and edited, Wilfrid Sellars and John Hospers
Appleton-Century-Crofts, Inc., 1952
 Buku Teks
Bradley, F. H.
Ethical studies / F.H. Bradley
Clarendon Press, 1959
 Buku Teks
The Blackwell Guide to Ethical Theory
edited by Hugh LaFollette and Ingmar Persson
Wiley Blackwell, 2013
 Buku Teks