Gaya APA

,, S, M, M. (1998). Essential grammar in use : a self study reference and practice book for elementary students of english/Raymond Murphy (Ed. 2). Sleman :: Cambridge University Press.

Gaya MLA

,, Saleh, Muntasir,, M.. "Essential grammar in use : a self study reference and practice book for elementary students of english/Raymond Murphy". Ed. 2 Sleman :: Cambridge University Press, 1998. .