APA Style
Olii, Helena. (2010).
Public Speaking (2nd Ed).
Jakarta:
Indeks.
Chicago Style
Olii, Helena.
Public Speaking.
2nd Ed
Jakarta:
Indeks,
2010.
Books.
MLA Style
Olii, Helena.
Public Speaking.
2nd Ed
Jakarta:
Indeks,
2010.
Books.
Turabian Style
Olii, Helena.
Public Speaking.
2nd Ed
Jakarta:
Indeks,
2010.
Books.