Gaya APA
AZAR, , B, S.
(1989).
Understanding and usung english grammar
(
2nd ed)
.
America:
Prentice Hall Regents.
Gaya MLA
AZAR, , Betty, Schrampter.
"Understanding and usung english grammar".
2nd ed
America:
Prentice Hall Regents,
1989.
Text.