陳國司

壓縮時間的66個觀念 = 66 Ideas for being a efficient time manager by: 陳國司 (Language materials, printed) , [編著]

60秒成為業務高手 = Become a super salesman in 60 seconds by: 陳國司 (Language materials, printed) , [編著]

行銷, 不只是賣產品 = Become a super salesman : 業務員必備的行銷聖經 by: 陳國司 (Language materials, printed) , [編著]

行銷, 不只是賣產品 = Become a super salesman : 業務員不可不知的行銷觀念 by: 陳國司 (Language materials, printed) , [編著]