Gaya APA
SUDIYARTO, O, H, [. et al
(2007).
ENGLISH for academic purpose :
.
Yogyakarta:
Andi.
Gaya MLA
SUDIYARTO, Oktaviani, Hastu, [ed.]. et al.
"ENGLISH for academic purpose :".
Yogyakarta:
Andi,
2007.
Buku.