Gaya APA
Azar, B, S.
(2002).
Understanding And Using English Grammar
(
Cet. 1)
.
JAKARTA:
Binarupa Aksara.
Gaya MLA
Azar, Betty, Schrampfer.
"Understanding And Using English Grammar".
Cet. 1
JAKARTA:
Binarupa Aksara,
2002.
Text.