Gaya APA
User's guide
.
(1995).
Newzeland:
John Wiley.
Gaya Chicago
User's guide
.
.
Newzeland:
John Wiley,
1995.
Umum.
Gaya MLA
User's guide
.
.
Newzeland:
John Wiley,
1995.
Umum.
Gaya Turabian
User's guide
.
Newzeland:
John Wiley,
1995.
Umum.