Gaya APA
Hasibuan, Sofia Rangkuti. (1996).
English Language Structure .
Jakarta:
Djambatan.
Gaya Chicago
Hasibuan, Sofia Rangkuti.
English Language Structure.
Jakarta:
Djambatan,
1996.
Text.
Gaya MLA
Hasibuan, Sofia Rangkuti.
English Language Structure.
Jakarta:
Djambatan,
1996.
Text.
Gaya Turabian
Hasibuan, Sofia Rangkuti.
English Language Structure.
Jakarta:
Djambatan,
1996.
Print.