Gaya APA
Murphy, R. (1998).
English Grammar in Use: A Reference and Practice Book for Intermediate Students (Second Edition) (Cet.7).
Cambridge:
Cambrigde University Press.
Gaya MLA
Murphy, Raymond.
"English Grammar in Use: A Reference and Practice Book for Intermediate Students (Second Edition)".
Cet.7
Cambridge:
Cambrigde University Press,
1998.
Text.