Gaya APA

MURPHY, R. (2001). Essential Grammar In Use. A self-study reference and practice book for elementary students of english. 2ed (2). Jakarta: Erlangga.

Gaya MLA

MURPHY, Raymond. "Essential Grammar In Use. A self-study reference and practice book for elementary students of english. 2ed". 2 Jakarta: Erlangga, 2001. Printed.