Biological indicators in environmental protection
edited by Margit Kovacs
Ellis Horwood, 1992
 Buku Teks
Development of environmental protection in Japan
Ministry of Foreign Affairs, Japan, 1974
 Buku Teks
Wentz, Charles A., author
Safety, health, and environmental protection
WCB McGraw-Hill, 1998
 Buku Teks
Environmental protection and international law
edited by W. Lang, H. Neuhold,K. Zemanek
Graham & Trotman / Martinus Nijhoff, 1995
 Buku Referensi
Simorangkir, Ignatia Oktavia, author
Penerapan state of necessity dalam bilateral investment treaty = Implementation of state of necessity in bilateral investment treaty
2013
 UI - Skripsi (Membership)
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