Gaya APA
Azar, B, S.
(1992).
Fundamentals of English grammar
(
3rd ed)
.
Englewood Cliffs:
Prentice Hall Regents.
Gaya MLA
Azar, Betty, Schrampfer.
"Fundamentals of English grammar".
3rd ed
Englewood Cliffs:
Prentice Hall Regents,
1992.
Text.