Gaya APA
Sirait, Charles Bonar, Sirait, Bunga. (2015).
Publik Speaking and Business... .
Jakarta:
Elex Media Komputindo.
Gaya Chicago
Sirait, Charles Bonar, Sirait, Bunga.
Publik Speaking and Business....
Jakarta:
Elex Media Komputindo,
2015.
Text.
Gaya MLA
Sirait, Charles Bonar, Sirait, Bunga.
Publik Speaking and Business....
Jakarta:
Elex Media Komputindo,
2015.
Text.
Gaya Turabian
Sirait, Charles Bonar, Sirait, Bunga.
Publik Speaking and Business....
Jakarta:
Elex Media Komputindo,
2015.
Print.