Blank, Leland T.
Engineering economy
McGraw-Hill, 1989
Buku Teks
Blank, Leland T.
Engineering economy
McGraw-Hill, 2002
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Alexander, John W.
Economy geography
Prentice-Hall, 1979
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Thuesen, H.G.
Engineering economy
Prentice Hall India, 1981
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Engineering economy
E. Paul DeGarmo ... [et al.]
Prentice-Hall, 1997
Buku Teks