Salacuse, Jeswald W., author
American Management Association;, 2006
eBooks
Bottomore, Tom B., author
Penguin Books, 1964
Buku Teks
Wertheim, W.F. (Willem Frederik), author
Van Gennep, 1975
Buku Teks
Israr, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2006
UI - Tesis (Membership)
Crispin Thurlow, Adam Jaworski, editors
Routledge, 2018
Buku Teks