Beck, Charles E., author
Managerial communication
Prentice-Hall, 1999
 Buku Teks
Locker, Kitty O., author
Business and administrative communication
McGraw-Hill, 2013
 Buku Teks
Locker, Kitty O., author
Business and administrative communication
Irwin, 1995
 Buku Referensi
Locker, Kitty O.
Business and administrative communication
McGraw-Hill, 2000
 Multimedia
Ewald, Helen Rothschild
Business communication/ Rebecca E. Burnett
Prentice Hall International, 1997
 Buku Teks