釜渕優子

仕事の日本語 : 電子郵件 by: 奧村真希; 釜渕優子 (Language materials, printed) , [著]

實用敬語. 初級篇 by: 釜渕優子 (Language materials, printed) , [著]

仕事の日本語 = Telephone Japanese : 電話應答. 基礎篇 by: 古川哲也; 奧村真希; 釜渕優子 (Language materials, printed) , [著]

仕事の日本語 : 商務禮儀 by: 釜渕優子 (Language materials, printed) , [著]

しごとの日本語. ビジネスマナー編 by: 釜渕優子 (Language materials, printed) , [著]