Selby, David
Cambridge University Press, 1988
Buku Teks
Unesco, 1970
Buku Teks
A.A.Sg. Dwinta Kuntaladara
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2013
UI - Skripsi (Membership)
edited by Alice H. Henkin
Aspen Institute for Humanistic Studies, 1979
Buku Teks
edited by Ian Brownlie, Guy S. Goodwin-Gill
Clarendon Press, 1971
Buku Teks