Hart, Lois B
AMACOM, 2005
Buku Teks
Agus Pramusinto
2013
Artikel Jurnal
Rothwell, William J., 1951-
American Management Association;, 2010
eBooks
Achua, Christopher F.
South Western Cengage Learning, 2013
Buku Teks
Paravina, Rade D.
Elsevier Mosby, 2004
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