Stockwin, J.A.A., author
W.W. Norton, 1982
Buku Teks
Stockwin, J.A.A., author
Weidenfeld and Nicolson, 1975
Buku Teks
Bagus Fitrian Yudoprakoso, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2013
UI - Skripsi Membership
Richardson, Bradley M., author
Harper Collins, 1984
Buku Teks
Sales, Rosemary
Routledge, 1997
Buku Teks SO