APA Style

Azar, B, S., Hagen, S, A. (2006). Basic English Grammar (Ed.3). New York: Pearson Longman Asia ELT.

MLA Style

Azar, Betty, Schrampfer., Hagen, Stacy, A.. "Basic English Grammar". Ed.3 New York: Pearson Longman Asia ELT, 2006. Buku SMA Athalia.