Gaya APA

Murphy, R. (1985, 1994, 2004, 20). the world's best selling grammar book English Grammar in Use a self study reference and practice book for intermediate learners of english with answers 5th edition (E-Book) . Malaysia: Cambridge University Press.

Gaya MLA

Murphy, Raymond. "the world's best selling grammar book English Grammar in Use a self study reference and practice book for intermediate learners of english with answers 5th edition (E-Book)". Malaysia: Cambridge University Press, 1985, 1994, 2004, 20. E-book.