Kurian, George Thomas
The AMA dictionary of business and management
[American Management Association, ], 2013
 eBooks
Statt, David A.
Concise dictionary of business management
Routledge, 1999
 Buku Referensi
Seglin, Jeffrey L.
The AMA handbook of business letters
[American Management Association, American Management Association], 2002
 eBooks
Seglin, Jeffrey L.
The AMA handbook of business letters
Amacom, 1996
 Buku Referensi
Seglin, Jeffrey L.
The AMA handbook of business letters
[American Management Association;;;, ], 2012
 eBooks