Gaya APA
Hasibuan, Sofia. (1986).
English for specific purposes : medicine .
Jakarta:
Gramedia.
Gaya Chicago
Hasibuan, Sofia.
English for specific purposes : medicine.
Jakarta:
Gramedia,
1986.
Text.
Gaya MLA
Hasibuan, Sofia.
English for specific purposes : medicine.
Jakarta:
Gramedia,
1986.
Text.
Gaya Turabian
Hasibuan, Sofia.
English for specific purposes : medicine.
Jakarta:
Gramedia,
1986.
Print.