LEEDS DOROTHY. (2004). POWER SPEAK: ENGAGE, INSPIRE AND STIMULATE YOUR AUDIENCE. TATA MCGRAW-HILL.
Chicago-čujuhus (17. p.)LEEDS DOROTHY. POWER SPEAK: ENGAGE, INSPIRE AND STIMULATE YOUR AUDIENCE. NEW DEHLI: TATA MCGRAW-HILL, 2004.
MLA-čujuhus (9. p.)LEEDS DOROTHY. POWER SPEAK: ENGAGE, INSPIRE AND STIMULATE YOUR AUDIENCE. TATA MCGRAW-HILL, 2004.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.