Stewart, Rosemary, author
Prentice-Hall, 1982
Buku Teks
Schweiger, Joyce L., author
John Wiley & Sons, 1980
Buku Teks
McIntosh, Perry, author
[American Management Association;, ], 2011
eBooks
Tennant-Smith, J., author
Nelson, 1971
Buku Teks
Moonman, Eric, author
Pan Books, 1971
Buku Teks