Gaya APA
Azar, B, S., Budijanto, . (1993).
Understanding and Using English Grammar (Ed. 2, Cet. 1).
Jakarta:
Binarupa Aksara.
Gaya MLA
Azar, Betty, Schrampfer., Budijanto, .
"Understanding and Using English Grammar".
Ed. 2, Cet. 1
Jakarta:
Binarupa Aksara,
1993.
Text.