APA Style
RANGKUTI-HASIBUAN, Sofia. (1986).
English For Spesific Purpose Economics .
jakarta:
Gramedia.
Chicago Style
RANGKUTI-HASIBUAN, Sofia.
English For Spesific Purpose Economics.
jakarta:
Gramedia,
1986.
Text.
MLA Style
RANGKUTI-HASIBUAN, Sofia.
English For Spesific Purpose Economics.
jakarta:
Gramedia,
1986.
Text.
Turabian Style
RANGKUTI-HASIBUAN, Sofia.
English For Spesific Purpose Economics.
jakarta:
Gramedia,
1986.
Print.