Gyeszly, Suzanne D., author
Eastern Europe : A resource guide
The Borgo Press, 1994
 Buku Referensi
Ross, Sheri V. T., author
Guide to electronic resource management
California Libraries Unlimited, 2016
 Buku Teks
Anderson, David A., author
Environmental economics and natural resource management
Taylor & Francis Group, 2014
 Buku Teks
Rubenstein, Harvey M.
A guide to site and environmental planning
New York: John Wiley & Sons, 1980
 Buku Teks
Schwedt, Georg, author
The Essential Guide to environmental chemistry
John Wiley & Sons, 2001
 Buku Teks
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