Effective speaking

Eitemau Tebyg

• Effective speaking
  gan: Carpio, Rustica C., et al.
  Cyhoeddwyd: (1981)
• Effective speaking
  gan: Carpio, Rustica C., et al.
  Cyhoeddwyd: (1981)
• Private and public speaking
  gan: Carpio, Rustica C.
  Cyhoeddwyd: (2003)
• The challenge of effective speaking.
  gan: Verderber, Rudolph F.
  Cyhoeddwyd: (1985)
• The challenge of effective speaking
  gan: Verderber, Rudolph F.
  Cyhoeddwyd: (2006)