Ausubel, D. P. (1968). Educational psychology. New York, NY: Holt, Rinehart, & Winston
Duarte, N. (October 31, 2012). Structure your presentation like a story. Harvard Business Review (HBR). https://hbr.org/2012/10/structure-your-presentation-li
Mehrabian, A. (1981). Silent messages: Implicit communication of emotions and attitudes (2nd ed.). Belmont, CA: Wadsworth.
Toastmasters International. (2011). Your speaking voice: Tips for adding strength and authority to your voice. https://toastmasterscdn.azureedge.net/medias/files/department-documents/education-documents/199-your-speaking-voice.pdf