Penggayaan APA
SIRAIT, Charles Bonar. (2008).
The power of public speaking: .
Jakarta:
Gramedia.
Chicago Style
SIRAIT, Charles Bonar.
The power of public speaking:.
Jakarta:
Gramedia,
2008.
Buku.
MLA Style
SIRAIT, Charles Bonar.
The power of public speaking:.
Jakarta:
Gramedia,
2008.
Buku.
Turabian Style
SIRAIT, Charles Bonar.
The power of public speaking:.
Jakarta:
Gramedia,
2008.
Buku.