Gaya APA
LANGAN, John. (2008).
English Skills with Readings .
Rak H - N:
Elexmedia.
Gaya Chicago
LANGAN, John.
English Skills with Readings.
Rak H - N:
Elexmedia,
2008.
Buku.
Gaya MLA
LANGAN, John.
English Skills with Readings.
Rak H - N:
Elexmedia,
2008.
Buku.
Gaya Turabian
LANGAN, John.
English Skills with Readings.
Rak H - N:
Elexmedia,
2008.
Buku.