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