Gaya APA
Flower, John. (1990).
Build Your Business Vocabulary .
England:
Language Teaching Publications.
Gaya Chicago
Flower, John.
Build Your Business Vocabulary.
England:
Language Teaching Publications,
1990.
Buku.
Gaya MLA
Flower, John.
Build Your Business Vocabulary.
England:
Language Teaching Publications,
1990.
Buku.
Gaya Turabian
Flower, John.
Build Your Business Vocabulary.
England:
Language Teaching Publications,
1990.
Buku.