APA Style
Olii, Helena. (2007).
Pblic Speaking .
Jakarta:
Indeks.
Chicago Style
Olii, Helena.
Pblic Speaking.
Jakarta:
Indeks,
2007.
Buku.
MLA Style
Olii, Helena.
Pblic Speaking.
Jakarta:
Indeks,
2007.
Buku.
Turabian Style
Olii, Helena.
Pblic Speaking.
Jakarta:
Indeks,
2007.
Buku.