Gaya APA
Azar, B, S.
(1995).
Basic english grammar / Betty Schrampfer Azar
(
ed. 2)
.
USA:
Pearson Education.
Gaya MLA
Azar, Betty, Schrampfer.
"Basic english grammar / Betty Schrampfer Azar".
ed. 2
USA:
Pearson Education,
1995.
Fak. Tarbiyah.