Ringle, William J. Techedge : using computers to present and persuade / Using computers to present and persuade William J. Ringle, William D. Thompson - Boston : Allyn and Bacon, 1998 - xx, 186 p. : ill. ; 22 cm. - The essence of public speaking series . ISBN: 020527305X RM43.91 Subjects--Topical Terms: Business presentationsPublic speakingComputers