Johnston, R., & Shulver, M. C. (2018). Service Operations Management: Improving Service Delivery (4th ed.). Pearson.
Chicago-viite (17. p.)Johnston, Robert, ja Michael Clark Shulver. Service Operations Management: Improving Service Delivery. 4th ed. India: Pearson, 2018.
MLA-viite (9. p.)Johnston, Robert, ja Michael Clark Shulver. Service Operations Management: Improving Service Delivery. 4th ed. Pearson, 2018.
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