懷特利 ((Whiteley, Richard C.))

經營顧客心 by: Whiteley, Richard C; 懷特利 ((Whiteley, Richard C.)); 董更生 (Language materials, printed) , [著]

贏得顧客心 by: Hessan, Diane; Whiteley, Richard C; 哈珊 ((Hessan, Diane)); 懷特利 ((Whiteley, Richard C.)); 譚家瑜 (Language materials, printed) , [著]