翁肯(Oncken, William)

時間管理之鑰[錄影資料] = Time management : keep the moneky off your back by: 翁肯(Oncken, William); 弘品實業公司 (Language materials, printed) , [著]

一分鐘時間管理 by: 布蘭查(Blanchard, Kenneth); 翁肯(Oncken, William); 官如玉; 巴羅斯(Burrows, Hal) (Language materials, printed) , [著]