Gaya APA
drs. bahtera sembiring, dip. tesol. (1995).
english for polytechnic student in commerce division .
Bandung:
pusat pengembangan pendidikan politekni.
Gaya Chicago
drs. bahtera sembiring, dip. tesol.
english for polytechnic student in commerce division.
Bandung:
pusat pengembangan pendidikan politekni,
1995.
Text.
Gaya MLA
drs. bahtera sembiring, dip. tesol.
english for polytechnic student in commerce division.
Bandung:
pusat pengembangan pendidikan politekni,
1995.
Text.
Gaya Turabian
drs. bahtera sembiring, dip. tesol.
english for polytechnic student in commerce division.
Bandung:
pusat pengembangan pendidikan politekni,
1995.
Print.