Hedgecoe, Mark.
BBC Worldwide Limited, 2005
Multimedia
Thomsett, Michael C., author
American Management Association;, 2008
eBooks
Oby Robini, author
2017
UI - Skripsi (Membership)
Bondarouk, Tanya, author
Emerald, 2017
eBooks
Srinivasan, A.V., 1936-, author
Cambridge University Press, 2001
Buku Teks