Gaya APA
Public Speaking Mastery. (2018).
Jakarta Pusat:
Gramedia Pustaka Utama.
Gaya Chicago
Public Speaking Mastery.
Cet. 10.
Jakarta Pusat:
Gramedia Pustaka Utama,
2018.
Text.
Gaya MLA
Public Speaking Mastery.
Cet. 10.
Jakarta Pusat:
Gramedia Pustaka Utama,
2018.
Text.
Gaya Turabian
Public Speaking Mastery.
Jakarta Pusat:
Gramedia Pustaka Utama,
2018.
Print.