Hoyle, Mark S.W.
The law of international trade
Laureate Press, 1981
 Buku Teks
Houtte, Hans van
The law of international trade
Sweet and Maxwell, 1995
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Marasinghe, Lakshman
Principles of international trade law
Butterworth Asia, 1998
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Houtte, Hans van
The law of international trade
Sweet and Maxwell, 1995
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Environmental protection and international law
edited by W. Lang, H. Neuhold,K. Zemanek
Graham & Trotman / Martinus Nijhoff, 1995
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