Penggayaan APA
Rangkuti, H.Sofia. (1988).
English for specific purposes : Economic .
Jakarta:
Gramedia.
Chicago Style
Rangkuti, H.Sofia.
English for specific purposes : Economic.
Jakarta:
Gramedia,
1988.
Text.
MLA Style
Rangkuti, H.Sofia.
English for specific purposes : Economic.
Jakarta:
Gramedia,
1988.
Text.
Turabian Style
Rangkuti, H.Sofia.
English for specific purposes : Economic.
Jakarta:
Gramedia,
1988.
Print.