Zarefsky, David, author
Public speaking: startegies for success / David Zarefsky
Allyn and Bacon, 1996
 Buku Teks
Buys, William E.
Speaking by doing : teacher's resource book / William E. Buys
National Textbook Cmopany, 1994
 Buku Referensi
Zarefsky, David, author
Public speaking : strategies for success
Allyn and Bacon, 2011
 Buku Teks
Carnegie, Dale, 1888-1955, author
Public speaking for success
Bhuana Ilmu Populer, 2022
 Buku Teks
Performance management system under new public management approach : success or failure?
 Artikel Jurnal
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