Macy, Beverly, author
McGraw-Hill, 2011
Buku Teks
Hanani Faiza, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2013
UI - Skripsi Membership
Goldman, Jeremy, author
[American Management Association, ], 2013
eBooks
Weber, Larry, author
John Wiley & Sons Inc., 2009
Buku Teks
Martina Shalaty Putri, author
Program Pascasarjana Universitas Indonesia, 2012
UI - Tesis Open