Secrets of successful speakers : how you can motivate, captive, and persuade / Lilly Walters ; with foreword by Norman Vincent Peale and Stew Leonard, Jr.. (2000). New York, NY: McGraw-Hill, c.
Secrets of successful speakers : how you can motivate, captive, and persuade / Lilly Walters ; with foreword by Norman Vincent Peale and Stew Leonard, Jr.. . New York, NY: McGraw-Hill, c, 2000. Buku Wajib.