Brethauer, Dale, author
[American Management Association, ], 2002
eBooks
Gopalaswamy, Smita, author
CRC Press, 2008
Buku Teks
Hooks, Ivy F., author
[American Management Association, ], 2001
eBooks
Trott, Paul, author
Pearson Education , 2017
Buku Teks
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2001
UI - Skripsi (Membership)