Gaya APA
Murphy, R. (2001).
Esensi Grammar In Use:A self study refrence and practice book for elementary students of english with answets / Raymond Murphy (Ed.2).
cembridge:
Crlanssa.
Gaya MLA
Murphy, Raymond.
"Esensi Grammar In Use:A self study refrence and practice book for elementary students of english with answets / Raymond Murphy".
Ed.2
cembridge:
Crlanssa,
2001.
Text.