Gaya APA

RICHARDS, J, M, I, M. (1980). Creative engglish for indonesia workbook two for sekolah menengah atas . America: Oxford University Press.

Gaya MLA

RICHARDS, J.C.,, MARKUS,, I, Made. "Creative engglish for indonesia workbook two for sekolah menengah atas". America: Oxford University Press, 1980. BUKU.