Collins, David
An introduction to International investment law
Cambridge University Press, 2017
Buku Teks
Janis, Mark W.
An introduction to international law
Little, Brown , 1993
Buku Teks
Klabbers, Jan
An introduction to international institutional law
Cambridge University Press, 2002
Buku Teks
Starke, J.G.
An introduction to international law
Butterworth , 1958
Buku Teks
Lewis, Merlin
An Introduction to international law
Prentice-Hall, 1978
Buku Teks