Penggayaan APA
PUBLIC speaking success in 20 minutes a day. (2010).
New York:
Learning Express.
Chicago Style
PUBLIC speaking success in 20 minutes a day.
.
New York:
Learning Express,
2010.
Buku.
MLA Style
PUBLIC speaking success in 20 minutes a day.
.
New York:
Learning Express,
2010.
Buku.
Turabian Style
PUBLIC speaking success in 20 minutes a day.
New York:
Learning Express,
2010.
Buku.