[publisher not identified], 1975
Buku Teks
External Information Dept., Ministry of Culture and Information, 1983
Buku Teks
Bey, Marmorahati Monik, author
Fakultas Hukum Universitas Indonesia, 1988
UI - Skripsi (Membership)
Sualrez, Francisco, author
Clarendon press: London, H. Milford, 2004
Buku Teks
Oxford Univertity Press, 2004
Buku Teks