坂上肇

提高業績：67鐵則 by: 鄭皮耶; 坂上肇 (Language materials, printed) , [著]

潛能啟動 by: 新苗編譯小組; 坂上肇 (Language materials, printed) , [著]

智慧型的推銷員 by: 坂上肇; 李文勇 (Language materials, printed) , [著]

我是職場No.1：打造職場競爭力 by: 坂上肇 (Language materials, printed) , [著]