Herodotus
The histories
Everyman's Library, 1997
 Buku Referensi
Ethical issues in social work
edited by Richard Hugman, David Smith
Routledge, 1996
 Buku Teks SO
Rhodhes, Margaret L.
Ethical dilemmas in social work practice
Routledge and Kegan Paul, 1986
 Buku Teks SO
Dolgoff, Ralph
Ethical decisions for social work practice
Thomson Brooks/Cole, 2012
 Buku Teks SO
Kizza, Joseph Migga
Ethical and social issues in the information age
Springer International Publishing, 2017
 eBooks