Gaya APA
AZAR, B, S, H, S, A., HARTLE, S.
(2006).
Basic english grammar
(
3 rd.Ed)
.
London:
Pearson Longman.
Gaya MLA
AZAR, Betty, Schrampfer.;, HAGEN,, Stacy, A., HARTLE, Shelley.
"Basic english grammar".
3 rd.Ed
London:
Pearson Longman,
2006.
Text.