Gaya APA
Azar, B, S.
(1993).
Fundamentals of English grammar
(
3nd ed.)
.
Jakarta:
Binarupa Aksara.
Gaya MLA
Azar, Betty, Schrampfer.
"Fundamentals of English grammar".
3nd ed.
Jakarta:
Binarupa Aksara,
1993.
Text.