APA Style
WAHYUDI, Tubagus. (2013).
The Secret of Public Speaking Era Konseptual .
Jakarta:
bbc publisher.
Chicago Style
WAHYUDI, Tubagus.
The Secret of Public Speaking Era Konseptual.
Jakarta:
bbc publisher,
2013.
Buku.
MLA Style
WAHYUDI, Tubagus.
The Secret of Public Speaking Era Konseptual.
Jakarta:
bbc publisher,
2013.
Buku.
Turabian Style
WAHYUDI, Tubagus.
The Secret of Public Speaking Era Konseptual.
Jakarta:
bbc publisher,
2013.
Buku.