Gaya APA
Bintang, W., Irwan, .
(2014).
Powerful public speaking
(
Cet. 1.)
.
Yogyakarta:
Penerbit Andi.
Gaya MLA
Bintang, Widayanto., Irwan, .
"Powerful public speaking".
Cet. 1.
Yogyakarta:
Penerbit Andi,
2014.
Text.