Gaya APA
Murphy, R. (1998).
English Grammer In We : A Reference And Practice Book For Intermediate Students (ed.2).
New York:
Combridge Universitas Press.
Gaya MLA
Murphy, Raymond.
"English Grammer In We : A Reference And Practice Book For Intermediate Students".
ed.2
New York:
Combridge Universitas Press,
1998.
Text.