Kuglin, Fred A., author
AMACOM , 2001
Buku Teks
Bradberry, John, 1961-, author
American Management Association, 2011
eBooks
Rinaldhi Banu Ristyan, author
2017
UI - Skripsi (Membership)
Afuah, Allan, author
Mc Graw-Hill, 2003
Buku Teks
Afuah, Allan, author
McGraw-Hill, 2006
Buku Teks