Gaya APA

Hewings, M. (2002). Advanced grammar in Use : A self-study reference and practice book for advanced learners of English with answers / Martin Hewings (Ed.ke-2, Cet.2). Jakarta: Erlangga.

Gaya MLA

Hewings, Martin. "Advanced grammar in Use : A self-study reference and practice book for advanced learners of English with answers / Martin Hewings". Ed.ke-2, Cet.2 Jakarta: Erlangga, 2002. Skripsi.