Mancuso, Joseph C., author
[American Management Association;, ], 1992
eBooks
Braverman, Jerome D., author
Academic Press, 1978
Buku Teks
Hamilton, Robert W., author
Little, Brown , 1989.
Buku Teks
Howell, Rate A., author
Dryden Press, 1984
Buku Teks
Robinson, Webster, author
McGraw-Hill, 1925
Buku Teks