Gaya APA
Windasuri. (2016).
Excellent service .
Jakarta:
Gramedia Pustaka Utama.
Gaya Chicago
Windasuri.
Excellent service.
Jakarta:
Gramedia Pustaka Utama,
2016.
Text.
Gaya MLA
Windasuri.
Excellent service.
Jakarta:
Gramedia Pustaka Utama,
2016.
Text.
Gaya Turabian
Windasuri.
Excellent service.
Jakarta:
Gramedia Pustaka Utama,
2016.
Print.