Osgood, William R.
Preparing your business plan : with lotus 1-2-3
Prentice-Hall, 1984
 Buku Teks
Pearson, Barrie
Common-sense business Strategy : how to improve your profits and cash flow dramatically
Mercurry, 1991
 Buku Teks
Wright, M.G.
Discounted cash flow
McGraw-Hill, 1973, 1967
 Buku Teks
Mastering symphony
[publisher not identified], [date of publication not identified]
 Buku Teks SO
Baras, Edward M.
The symphony book
Osborne McGraw-Hill , 1985
 Buku Teks SO