Ardan Aziz Rahman, author
2018
UI - Skripsi (Membership)
Mathews, Brian, author
[American Management Association, ], 2009
eBooks
Bombay : International Magazine of Afro - Asian Affairs
Majalah, Jurnal, Buletin
Kudeok Publishing Company, 2006
Buku Referensi
Riska Junita, author
Fakultas Psikologi Universitas Indonesia, 2013
UI - Skripsi (Membership)