Harvard Business School Press, 1994
Buku Teks
Yusuf Hakim, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2018
UI - Skripsi (Membership)
Saunders, Rebecca
Capstone , 2000
Buku Teks
Emerald, 2018
eBooks
Pauli, Gunter, author
Epsilon Press, 1996
Buku Teks