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
Treece, Marla
Succesful communication for business sand the profession/ Malra Treece
Allyn and Bacon, 1994
 Buku Teks
Munter, Mary, author
Guide to managerial communication: effective business writing and speaking
Prentice-Hall, 1982
 Buku Referensi