Stephen E. Condrey, editor
Jossey-Bass, 2010
Buku Teks
Gunter K. Stahl, Ingmar Bjorkman, Shad Morris, editors
Edward Elgar, 2012
Buku Teks
Mike Millmore, Philip Lewis, Mark Saunders, Adrian Thornhill, Trevor Morrow
Prentice-Hall, 2007
Buku Teks
Stone, Raymond J., author
John Wiley & Sons, 1995
Buku Teks
by John H. Hollenbeck [and others]
McGraw-Hill, 2009
Buku Teks