Gaya APA

Hewings, M. (2001). Advanced grammar in use : a self-study reference and practice book for advanced learners of English with answers (2nd ed). Jakarta: Erlangga.

Gaya MLA

Hewings, Martin. "Advanced grammar in use : a self-study reference and practice book for advanced learners of English with answers". 2nd ed Jakarta: Erlangga, 2001. Text.