Raymond, M.(20,012,006).English grammar in Use : A self-study reference and practice book for intermediate students with answers / Raymond Murphy (Ed.ke-2, Cet.4).Jakarta:Erlangga.
Gaya MLA
Murphy, Raymond."English grammar in Use : A self-study reference and practice book for intermediate students with answers / Raymond Murphy".Ed.ke-2, Cet.4Jakarta:Erlangga,20,012,006.Skripsi.