Gaya APA
College writing skills, Media edition. (2003).
Boston:
Mc Graw-Hill.
Gaya Chicago
College writing skills, Media edition.
.
Boston:
Mc Graw-Hill,
2003.
Buku.
Gaya MLA
College writing skills, Media edition.
.
Boston:
Mc Graw-Hill,
2003.
Buku.
Gaya Turabian
College writing skills, Media edition.
Boston:
Mc Graw-Hill,
2003.
Buku.