edited by Stephen Ackroyd, Rosemary Batt, Paul Thompson and Pamela S. Tolbert
Oxford University Press, 2006
Buku Referensi
edited by Marc J. Schabracq, Jacques A.M. Winnubst, Cary L. Cooper
John Wiley & Sons, 2003
Buku Teks
Sage Publications, 2001
Buku Teks
Bhagat, Rabi S.
Cambrigde University Press , 2009
Buku Teks
Keefe, Robert H., author
Springer Publishing Company, 2013
Buku Teks