Gaya APA
basic conservations. (2005).
Jakarta:
Rineka Cipta.
Gaya Chicago
basic conservations.
.
Jakarta:
Rineka Cipta,
2005.
Buku.
Gaya MLA
basic conservations.
.
Jakarta:
Rineka Cipta,
2005.
Buku.
Gaya Turabian
basic conservations.
Jakarta:
Rineka Cipta,
2005.
Buku.