Minars, David, author
McGraw-Hill, 1994
Buku Referensi
Morehouse, W. R.
The Bankers Publishing Co., 1918
Buku Teks
Hahn, Fredrick, author
American Management Association;, 2009
eBooks
Whiteman, Lily Madeleine, author
[American Management Association;, ], 2008
eBooks
Whiteman, Lily Madeleine, author
[American Management Association, ], 2012
eBooks