Singh, Rita
Profiling Humans from their Voice
Springer Singapore, 2019
 eBooks
Samuelson, Paul Anthony, 1915-2009
Economics
McGraw-Hill, 2010
 Buku Teks
Sloman, John
Economics
Harvester Wheatsheaf, 1994
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Lipsey, Richard G.
Economics
Harper Collin, 1996
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Albrecht, William P.
Economics
Prentice-Hall, 1979
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