Gaya APA
BBC Chartering, BBC Guideline. (2017).
New York:
Excellence.
Gaya Chicago
BBC Chartering, BBC Guideline.
.
New York:
Excellence,
2017.
Text.
Gaya MLA
BBC Chartering, BBC Guideline.
.
New York:
Excellence,
2017.
Text.
Gaya Turabian
BBC Chartering, BBC Guideline.
New York:
Excellence,
2017.
Print.