Gaya APA
Longman advanced American dictionary :. (2007).
Edinburgh:
Pearson Education Limited.
Gaya Chicago
Longman advanced American dictionary :.
.
Edinburgh:
Pearson Education Limited,
2007.
Buku.
Gaya MLA
Longman advanced American dictionary :.
.
Edinburgh:
Pearson Education Limited,
2007.
Buku.
Gaya Turabian
Longman advanced American dictionary :.
Edinburgh:
Pearson Education Limited,
2007.
Buku.