Starke, J.G., author
Butterworth, 1977
Buku Teks
Klabbers, Jan, author
Cambridge University Press, 2009
Buku Teks
Schachter, Oscar, 1915-, author
Martinus Nijhoff , 1991
Buku Teks
Mohammed Bedjaoui, general editor
Unesco, 1991
Buku Referensi
edited by Malcolm D. Evans
Balckstone, 1991
Buku Referensi