Yu, B. Y. (1998). Why are companies turning to customer care strategies?: It venders are providing the ansers. Manila Bulletin.
Chicago-viite (17. p.)Yu, Bernard Y. "Why Are Companies Turning to Customer Care Strategies?: It Venders Are Providing the Ansers." Manila Bulletin 1998.
MLA-viite (9. p.)Yu, Bernard Y. "Why Are Companies Turning to Customer Care Strategies?: It Venders Are Providing the Ansers." Manila Bulletin, 1998.
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