Drucker, Peter F. (Peter Ferdinand), 1909-2005, author
Harvard Business Review Book, 2008
Buku Teks
Cynthia Jayanti Sari, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
UI - Skripsi (Membership)
Morgan Kaufmann, 2015
eBooks
Robinson, Colin
Gunung Mulia, 1993
Buku Teks
Harvard Business School Press, 2000
Buku Teks