De Vries, Mary Ann
Complete secretary's handbook
Prentice-Hall, 1991
 Buku Referensi
Doris, Lillian
Complete secretary's handbook
Prentice-Hall, 1970
 Buku Referensi
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