
濵 Ʈ ϴ Ȯϰ ̲ 50 Ģ Ұ. ϸ 뿡 ٽ ľϰ ִ Ģ 迡 ϴ ٸ , ð 濵 ʿ ް Ǵ ΰ ̰ܳ ̸ 50 Ģ ϸ俬ϰ ߴ.

Ƽ ο Ʒ о ̸ Ʈ濵, о ְ . D.E.I ŴƮ â ȸ ̳ ũ 缺 Դ. Cold Calling Techniques(That Really Work!), The 25 Habits of Highly Successful Salespeople, Make It Your Business, The Consultants Handbook ִ.
ű ġ б ι ؿȸ翡 ؿܿ ϰ ִ. ƮƮ 100⡻, ̵塻 ۿ ټ ڷ ߴ.

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