Tosca, E. (1997). Communication skills profile. San Francisco: Jossey-Bass Pfeiffer.
Trích dẫn kiểu ChicagoTosca, Elena. Communication Skills Profile. San Francisco: Jossey-Bass Pfeiffer, 1997.
Deismireacht MLATosca, Elena. Communication Skills Profile. San Francisco: Jossey-Bass Pfeiffer, 1997.
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