Beer,Michael

成功之鑰 by: Beer,Michael; 葉玉龍 (Language materials, printed) , [著]

推銷?有意思! by: Beer,Michael; 楊振富 (Language materials, printed) , [著]

湯姆的日記 by: Beer,Michael; 蔡繼光 (Language materials, printed) , [著]

創造升遷機會 by: Beer,Michael (Language materials, printed) , [著]