Universitas Indonesia, 2010
UI - Skripsi (Open)
Sukhmeet S. Panesar, Andrew Carson-Stevens, Sarah A. Salvilla, Aziz Sheikh.
Erlangga, 2017
Buku Teks
Swage, Thoreya, author
Butterworth-Heinemann , 2004
Buku Teks
Choiroel Woestho, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
UI - Tesis (Membership)
Dlugacz, Yosef D., author
Jossey-Bass, 2006
Buku Teks