Sage Publications, 2009
eBooks
edited by Leo Goldberger and Shlomo Breznitz
The Free Press, 1982
Buku Teks SO
Newton, Tim, author
Sage, 1995
Buku Teks SO
edited by Shirley Fisher and James Reason
John Wiley & Sons, 1988
Buku Referensi
edited by Cary L. Cooper, James Campbell Quick, Marc J. Schabracq
John Wiley & Sons, 2009
Buku Teks