Hicks, Herbert G.
Modern business management : a systems and environmental approach
McGraw-Hill Kogakusha, 1974
 Buku Teks
Kubasek, Nancy K.
Environmental law
Pearson - Prentice Hall, 2005
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Gaba, Jeffrey M.
Environmental Law
United States of America, 1994
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Leeson, John D.
Environmental law
Pitman, 1995
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Rodgers, William H.
Environmental law
[Publisher not identified], 1977
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