Gaya APA

Booher, D. (2004). Speak With Confidence Powerful Presentations that Inform, Inspire, and Persuade (Cet 1). jakarta: PT Bhuana Ilmu Populer.

Gaya MLA

Booher, Dianna. "Speak With Confidence Powerful Presentations that Inform, Inspire, and Persuade". Cet 1 jakarta: PT Bhuana Ilmu Populer, 2004. Text.