APA Style
Olii, Helena. (2007).
Public Speaking/ Helena Olii (-).
Jakarta:
Indeks.
Chicago Style
Olii, Helena.
Public Speaking/ Helena Olii.
-
Jakarta:
Indeks,
2007.
Text.
MLA Style
Olii, Helena.
Public Speaking/ Helena Olii.
-
Jakarta:
Indeks,
2007.
Text.
Turabian Style
Olii, Helena.
Public Speaking/ Helena Olii.
-
Jakarta:
Indeks,
2007.
Print.