Gaya APA
Sembiring, B. (1995).
English 2 : for polytechnic students in commerce division .
Bandung:
Pusat Pengembangan Pendid.
Gaya MLA
Sembiring, Bahtera.
"English 2 : for polytechnic students in commerce division".
Bandung:
Pusat Pengembangan Pendid,
1995.
Text.