Gaya APA
Wiley International Editions. ().
Singapore:
John Wiley.
Gaya Chicago
Wiley International Editions.
.
Singapore:
John Wiley,
.
Monograf.
Gaya MLA
Wiley International Editions.
.
Singapore:
John Wiley,
.
Monograf.
Gaya Turabian
Wiley International Editions.
Singapore:
John Wiley,
.
Monograf.