傑爾

偷看管理大師的私房筆記 by: 傑爾 (Language materials, printed) , [著]

跳槽啊？先等一下！ by: 傑爾 (Language materials, printed) , [著]

為自己找對定位 by: 傑爾 (Language materials, printed) , [著]

西點菁英給青年人的7堂課 = The great 7 lessons of the west point by: 傑爾; 陳惠蓉 (Language materials, printed) , [著]