Common, Michael
Environmental and resource economics: an introduction / Michael Common
Addison Wesley Longman, 1996
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Wright, Chester
Economics and systems analysis
Addison-Wesley, 1973
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Bach, George Leland
Economics an introduction to analysis and policy
Prentice-Hall, 1960
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Bach, George Leland
Economics an introduction to analysis and policy
Prentice-Hall, 1980
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Bach, George Leland
Economics an introduction to analysis and policy
Prentice-Hall, 1958
 Buku Teks SO