Sobczak, A. (2013). Smart calling: Eliminate the fear, failure, and rejection from cold calling (2nd ed.). Wiley.
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Chicago-čujuhus (17. p.)
Sobczak, Art. Smart Calling: Eliminate the Fear, Failure, and Rejection from Cold Calling. 2nd ed. Hoboken: Wiley, 2013.
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MLA-čujuhus (9. p.)
Sobczak, Art. Smart Calling: Eliminate the Fear, Failure, and Rejection from Cold Calling. 2nd ed. Wiley, 2013.
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