Abdul Hafizh Karim, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2018
UI - Skripsi (Membership)
Downie, R.S
Oxford University Press, 1994
Buku Teks
Downie, N. M.
Harper & Row, Pub., 1974
Buku Teks
McGillick, Paul
Amsterdam:Rodopi, 1988
Buku Teks
edited by Heather Radi, Peter Spearritt
Hale & Iremonger, 1977
Buku Teks