Mike Millmore, Philip Lewis, Mark Saunders, Adrian Thornhill, Trevor Morrow
Prentice-Hall, 2007
Buku Teks
Randall S.Schuler, Susan E.Jackson, editor
Blackwell Publisher, 2000
Buku Teks
Greer, Charles R., author
Prentice-Hall, 2001
Buku Teks
by John H. Hollenbeck [and others]
McGraw-Hill, 2009
Buku Teks
by Raymond Andrew Noe [and others]
McGraw-Hill/Irwin, 2014
Buku Teks