Gaya APA
Broughton, G. (1973).
Success with english the penguin course : coursebook 1 (1 st ed).
England:
The Penguin Books Ltd..
Gaya MLA
Broughton, Geoffrey.
"Success with english the penguin course : coursebook 1".
1 st ed
England:
The Penguin Books Ltd.,
1973.
BUKU.