Murphy, Herta A., author
Effective business communications
McGraw-Hill , 1984
 Buku Teks
Murphy, Herta A., author
Effective business communications
McGraw-Hill, 1976
 Buku Teks
Murphy, Herta A., author
Effective business communications
McGraw-Hill, 1991
 Buku Teks
Treece, Malra, author
Communication for business and the professions
Allyn and Bacon, 1989
 Buku Teks
Weaver, Patricia C., author
Persuasive writing : a manager’s guide to effective letters and reports
Free Press, 1977
 Buku Teks
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