비즈니스 스킬

[영어] Business Skill Step1-05 Presentation Skills

[영어] Business Skill Step2-01 Telephone Skills

[영어] Business Skill Step2-02 Social Skills

[영어] Business Skill Step2-03 Business Travel

[영어] Business Skill Step2-04 Meeting Skills

[영어] Business Skill Step2-05 Presentation Skills