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
Jauch, Lawrence R., author
McGraw-Hill, 1988
Buku Teks
David, Fred R., author
Prentice-Hall, 1997
Buku Teks