Gaya APA
Sirait, Charles Bonar, Sirait, Bunga. (2016).
The Power of Public Speaking .
Jakarta:
Gramedia.
Gaya Chicago
Sirait, Charles Bonar, Sirait, Bunga.
The Power of Public Speaking.
Jakarta:
Gramedia,
2016.
Text.
Gaya MLA
Sirait, Charles Bonar, Sirait, Bunga.
The Power of Public Speaking.
Jakarta:
Gramedia,
2016.
Text.
Gaya Turabian
Sirait, Charles Bonar, Sirait, Bunga.
The Power of Public Speaking.
Jakarta:
Gramedia,
2016.
Print.