Mordechai E. Kreinin, Michael G. Plummer, editors
Oxford University Press, 2012
Buku Teks
Okuda, Hidenobu
1985
Buku Teks
Bhagwati, Jagdish
MIT Press, 1983
Buku Teks
[Universitas Indonesia, ], 2008
UI - Skripsi (Open)
Volker, E.L.M.
Kluwer, 1985
Buku Teks