APA Style
Helena Olii, MM.. (2008).
Public Speaking .
Jakarta:
PT. Indeks.
Chicago Style
Helena Olii, MM..
Public Speaking.
Jakarta:
PT. Indeks,
2008.
.
MLA Style
Helena Olii, MM..
Public Speaking.
Jakarta:
PT. Indeks,
2008.
.
Turabian Style
Helena Olii, MM..
Public Speaking.
Jakarta:
PT. Indeks,
2008.
.