Gaya APA
Azar, B, S.
(1992).
Fundamentals of english grammar
(
Second Edition)
.
America:
Tina B. Carver.
Gaya MLA
Azar, Betty, Schrampfer.
"Fundamentals of english grammar".
Second Edition
America:
Tina B. Carver,
1992.
Textbook.