Gaya APA
A Rapid Course In English For Students Of Economics. (1973).
Jakarta:
.
Gaya Chicago
A Rapid Course In English For Students Of Economics.
Edisi Pertama.
Jakarta:
,
1973.
Text.
Gaya MLA
A Rapid Course In English For Students Of Economics.
Edisi Pertama.
Jakarta:
,
1973.
Text.
Gaya Turabian
A Rapid Course In English For Students Of Economics.
Jakarta:
,
1973.
Print.