Gaya APA
Sirait, Charles Bonar. (2015).
Public speaking and Business .
:
Kompas Grameda.
Gaya Chicago
Sirait, Charles Bonar.
Public speaking and Business.
:
Kompas Grameda,
2015.
FISIPOL.
Gaya MLA
Sirait, Charles Bonar.
Public speaking and Business.
:
Kompas Grameda,
2015.
FISIPOL.
Gaya Turabian
Sirait, Charles Bonar.
Public speaking and Business.
:
Kompas Grameda,
2015.
FISIPOL.