Gaya APA
Silitonga, Sukartini Djajahadikusumo. ().
English for students of economics .
:
.
Gaya Chicago
Silitonga, Sukartini Djajahadikusumo.
English for students of economics.
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,
.
Text.
Gaya MLA
Silitonga, Sukartini Djajahadikusumo.
English for students of economics.
:
,
.
Text.
Gaya Turabian
Silitonga, Sukartini Djajahadikusumo.
English for students of economics.
:
,
.
Print.