Daniels, John D.
PWS-Kent Publishing, 1993
Buku Teks
Dimas Adhitama, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2013
UI - Skripsi (Membership)
Clark, Marshall, author
Routledge, 2014
Buku Teks
Chudal, Alaka Atreya, author
Oxford University Press, 2016
eBooks
Branham, Leigh, author
[American Management Association, ], 2001
eBooks