Breakthrough customer service : best practices of leaders in customer support / editor and contributor, Stanley A. Brown. (2003). Etobicoke, Ont.: John Wiley & Sons Canada, c.
Breakthrough customer service : best practices of leaders in customer support / editor and contributor, Stanley A. Brown. . Etobicoke, Ont.: John Wiley & Sons Canada, c, 2003. Buku Wajib.