iSpeak improve your speech credibility

iSpeak improve your speech credibility

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Xehetasun bibliografikoak
Egile Nagusiak: Nelson, Paul E. (Paul Edward) 1941- (Egilea), Titsworth, Scott (Egilea), Pearson, Judy C. (Egilea)
Formatua: Liburua
Hizkuntza:English
Argitaratua: New York, NY McGraw-Hill 2013.
Edizioa:Fifth edition.
Gaiak:
Public speaking.