洪宏齡

改進你的英語 / by: 洪宏齡; Smith, Wallace; 史密斯 ((Smith,Wallace)); 周奇勳 (Language materials, printed)

一分鐘推銷人 / by: 強生 ((Johnson, Spencer)); 威爾生 ((Wilson, Larry)); 洪宏齡; Johnson, Spencer; Wilson, Larry (Language materials, printed)