Gaya APA
Booher, D. (2003).
Speak with Confidence: Powerful Presentations That Inform, Inspire and Persuade .
Singapore:
McGraw-Hill.
Gaya MLA
Booher, Dianna.
"Speak with Confidence: Powerful Presentations That Inform, Inspire and Persuade".
Singapore:
McGraw-Hill,
2003.
Text.