APA Style
Hidayati, N, N.
(2016).
IELTS preparation [CD]
.
Yogyakarta:
Pustaka Baru Press.
MLA Style
Hidayati, Niswatin, Nurul.
"IELTS preparation [CD]".
Yogyakarta:
Pustaka Baru Press,
2016.
CDROM.