葛史汪納|q(Gschwandtner, Gerhard),

口袋業務家教 = 25個隨身攜帶的銷售祕訣 / by: 葛史汪納|q(Gschwandtner, Gerhard),; 戴, 至中, (Language materials, printed)

業務拜訪現場直擊 = 有效判讀客戶肢體訊息,具體提昇銷售業績 / by: 劉, 復苓,; 葛史汪納|q(Gschwandtner, Gerhard), (Language materials, printed)

聽頂尖業務說故事 = 一起分享成功銷售的親身經歷 / by: 葛史汪納|q(Gschwandtner, Gerhard),; 禇, 耐安, (Language materials, printed)