Ellingsworth, Huber W., author
Speech and social action : a strategy of oral communication
Prentice-Hall, 1967
 Buku Teks
Plattner, Francis B., author
Improve your communication and speaking skills
American Society for Training and Development Press, 1997
 eBooks
Jenings, Judy, author
Communication basics
[American Society for Training and Development Press;, ], 2004
 eBooks
Andrews, Patricia Hayes, author
Communication for business and the professions
Waveland, 1986
 Buku Teks
Hybels, Saundra, author
Speech communication
D. Van Nostrand, 1974
 Buku Teks SO
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