Phillip R.Trimble
Aspen Law & Business, 1999
Buku Teks
by George A. Bermann ... [et al.]
West Pub. Co., 1993
Buku Teks
Jan Klabbers.
Cambridge University Press, 2016
Buku Teks
edited by Ian Brownlie
Clarendon Press, 1989
Buku Referensi
edited by Ian Brownlie
Clarendon Press, 1995
Buku Referensi