Klemperer, W. David
McGraw-Hill, 1996
Buku Teks
Heady, Earl O.
Prentice-Hall, 1952
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Common, Michael
Addison Wesley Longman, 1996
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Iwan Jaya Azis, 1953-
Bank Indonesia Insitute, 2019
Artikel Jurnal
Stutely, Richard
The Economist Books, 1992
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