Guruswamy, Lakshman D.
Thomson/West, 2012
Buku Teks
edited by W. Lang, H. Neuhold,K. Zemanek
Graham & Trotman / Martinus Nijhoff, 1995
Buku Referensi
Koivurova, Timo
Rotledge, 2014
Buku Teks
edited by Daniel Bodansky, Jutta Brunnee and Ellen Hey
Oxford University Press, 2007
Buku Teks
Fitzmaurice, Malgosia
Edward Elgar, 2009
Buku Teks