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