Gaya APA
Hill, L.A.. ().
Word power 1500 .
Jakarta:
Oxford University Press.
Gaya Chicago
Hill, L.A..
Word power 1500.
Jakarta:
Oxford University Press,
.
Text.
Gaya MLA
Hill, L.A..
Word power 1500.
Jakarta:
Oxford University Press,
.
Text.
Gaya Turabian
Hill, L.A..
Word power 1500.
Jakarta:
Oxford University Press,
.
Print.