Effective speaking

Antzeko izenburuak

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