Gaya APA
MURPHY, R. (1998).
Essential Grammar In Use : a self-study reference and practice book for elementary students of English (2nd ed., 5th printing).
Australia:
Cambridge University Press.
Gaya MLA
MURPHY, Raymond.
"Essential Grammar In Use : a self-study reference and practice book for elementary students of English".
2nd ed., 5th printing
Australia:
Cambridge University Press,
1998.
Text.