Philip, Tom
McGraw-Hill , 1983
Buku Teks
King, Patricia
McGraw-Hill , 1984
Buku Teks
Kuzmits, Frank E., author
Dow Jones-Irwin, 1984
Buku Teks
Kirkpatrick, Donald L., author
AMACOM, 2006
Buku Teks
Kirkpatrick, Donald L., author
Amacom, 2006
Buku Teks