Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1981
UI - Skripsi (Membership)
Peterson, Robin
New York, N.Y., Wiley / Hamilton
Buku Teks
McMillan, 1962
Buku Referensi
Attfield, Robin
Purdue University Press, 1999
Buku Teks
Centre for International and Public Law, 1992
Buku Teks