Dyah Ayu Ramadhani, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2013
UI - Tesis Membership
Rewoldt, Stewart H.
Bina Aksara, 1988
Buku Teks
Bradley, Frank, author
John Wiley & Sons, Ltd, 2003
Buku Teks
edited by Syed Saad Andaleeb, Khalid Hasan
Emerald, 2017
eBooks
Cravens, David W., author
Erlangga, 1996
Buku Teks