Gaya APA

Azar, B, S., Moore, S. (1989). Understanding andusing English grammar second edition (Ed.2). New Jersey: Prentice Hall Regets.

Gaya MLA

Azar, Betty, Schrampfer., Moore, Sylvia. "Understanding andusing English grammar second edition". Ed.2 New Jersey: Prentice Hall Regets, 1989. Text.