Schleh, Edward C., author
McGraw-Hill, 1984
Buku Teks
Mason, Joseph G.
McGraw-Hill, 1971
Buku Teks
Harrison, Jared F., author
Prentice-Hall, 1974
Buku Teks
Liff, Stewart, author
[American Management Association, ], 2004
eBooks
Cerami, Charles A., author
Prentice-Hall, 1957
Buku Teks