Gaya APA
HALL, M., AZAR, B, S. (2010).
UNDERSTANDING AND USING ENGLISH GRAMMAR : FOURTH EDITION (ED.4).
NEW YORK:
PEARSON EDUCATION ASIA.
Gaya MLA
HALL, MARTHA., AZAR, BETTY, S..
"UNDERSTANDING AND USING ENGLISH GRAMMAR : FOURTH EDITION".
ED.4
NEW YORK:
PEARSON EDUCATION ASIA,
2010.
Prodi S1 Sastra Inggris.