Gaya APA
Zelfi, F. (2016).
The Secret of Public Speaking : Panduan Pintar Berpidato, Presenter dan Moderator .
Yogyakarta:
Speak Up.
Gaya MLA
Zelfi, Fitria.
"The Secret of Public Speaking : Panduan Pintar Berpidato, Presenter dan Moderator".
Yogyakarta:
Speak Up,
2016.
Cetak.