Gaya APA

Azar, B, S. ([s.a]). Basic English grammar / Betty Schrampfer Azar (Ed.ke-2). New Jersey: Pearson Education.

Gaya MLA

Azar, Betty, Schrampfer. "Basic English grammar / Betty Schrampfer Azar". Ed.ke-2 New Jersey: Pearson Education, [s.a]. Textbook.