Loomis, Ted A.
IKIP Semarang Press , 1978
Buku Teks
Williams & Wilkins,, 1980
Buku Teks
Chand, Hari
International Law Book Services, 1994
Buku Teks
edited by Jorge Glusberg
Academy Editions, 1982
Buku Teks
Brinton, Crane, 1898-1968
Prentice-Hall, 1957
Buku Teks