Edited by Mary Ellen Coyte, Peter Gilbert, Vicky Nicholls
Philadelphia Jessica Kingsley Publishers, 2014
Buku Teks
Carson, Verna Benner, author
Saunders , 2000
Buku Teks
Brunei Press Sdn Bhd, 1999
Buku Referensi
Toton Witono, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2015
UI - Disertasi (Membership)
Forster, E.M. (Edward Morgan), 1879-1970, author
Vintage Books, 1962
Buku Teks