The Secretary of state
edited by Don K. Price
Prentice-Hall, 1960
 Buku Teks
De Vries, Mary Ann
Private Secretary's Encyclopedic Dictionary
[Publisher not identified], 1978
 Buku Teks
Stroman, James
Administrative assistant's and secretary's handbook
[American Management Association;, ], 2012
 eBooks
Stroman, James
Administrative assistant's and secretary's handbook
American Management Association, 2008
 eBooks
Stroman, James
Administrative assistant's and secretary's handbook
American Management Association, 2012
 eBooks