Gaya APA
English Intensive Course: Listening Practice. (2008).
Semarang:
English Department UNNES.
Gaya Chicago
English Intensive Course: Listening Practice.
Sixth Edition.
Semarang:
English Department UNNES,
2008.
Buku.
Gaya MLA
English Intensive Course: Listening Practice.
Sixth Edition.
Semarang:
English Department UNNES,
2008.
Buku.
Gaya Turabian
English Intensive Course: Listening Practice.
Semarang:
English Department UNNES,
2008.
Buku.