Murphy, Herta A.
Effective business communications
McGraw-Hill, 1976
 Buku Teks
Murphy, Herta A.
Effective business communications
McGraw-Hill, 1991
 Buku Teks
Treece, Malra
Communication for business and the professions
Allyn and Bacon, 1989
 Buku Teks SO
Weaver, Patricia C.
Persuasive writing : a manager’s guide to effective letters and reports
Free Press, 1977
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Davis, Ken
Better business writing: a process approach / Ken Davis
Charles E. Merrill Publishing Company, 1983
 Buku Teks SO