Tohutoro APA (7th ed.)
Harris, E. K. (2007). Customer service: A practical approach (4th ed.). Prentice-Hall.
Tohutoru Kātū Chicago (17th ed.)
Harris, Elaine K. Customer Service: A Practical Approach. 4th ed. New Jersey: Prentice-Hall, 2007.
Tohutoro MLA (9th ed.)
Harris, Elaine K. Customer Service: A Practical Approach. 4th ed. Prentice-Hall, 2007.
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