Gaya APA
GROLIER, Incorporaled. (1985).
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Mc Graw Hill.
Gaya Chicago
GROLIER, Incorporaled.
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Gaya MLA
GROLIER, Incorporaled.
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Mc Graw Hill,
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FAKULTAS EKONOMI.
Gaya Turabian
GROLIER, Incorporaled.
Index Grolier Incorporaled.
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Mc Graw Hill,
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