Gaya APA
AZAR, B, S.
(1996).
Basic English grammar
.
Upper Saddle River, New Jersey:
Prentice Hall Regents.
Gaya MLA
AZAR, Betty, Schrampfer.
"Basic English grammar".
Upper Saddle River, New Jersey:
Prentice Hall Regents,
1996.
Buku.