創造雙贏的銷售談判技巧 [DVD] [錄影資料] = Creating win-win negotiations skills for sales / 余正昭主講
抓得住成功 : 一桿進洞的100個成功魅力 / 余正昭著
突破逆境.開創成功人生 [DVD] [錄影資料] = Breakthroughs in adversity : a send-off to a successful life / 余正昭主講
圓滿的溝通技巧與人際關係[CD] [錄音資料] = How to perfect your communication skills in interpersonal relationships / 余正昭主講