Dess, Gregory G., author
McGraw-Hill/Irwin, 2005
Buku Teks
Bowman, Cliff, author
Prentice-Hall, 1990
Buku Teks
Henry, Anthony E., author
Oxford University press, 2011
Buku Teks
Hitt, Michael A., author
Thomson, South-Western, 2007
Buku Teks
Hitt, Michael A., author
Cengage Learning, 2017
Buku Teks