Gaya APA

Murphy, R. (2001). Essential Grammar In Use : A self-study reference and practice book for elementary students fo English (with answers) . Jakarta: PENERBIT ERLANGGA.

Gaya MLA

Murphy, Raymond. "Essential Grammar In Use : A self-study reference and practice book for elementary students fo English (with answers)". Jakarta: PENERBIT ERLANGGA, 2001. Text.