Nightingale, Kath, author
Prentice-Hall, 2002
Buku Teks
edited by Emile Woolf
Pitman, 1986
Buku Teks
Intersentia, 2017
eBooks
Zariani, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2004
UI - Tesis (Membership)
Hancock, Dora, author
Chapman and Hall, 1994
Buku Teks