Gaya APA

Utami, S., Evenson, R. (2018). Customer Service Training 101: Quick And Esay Techniques That Get Great Results (Third Edition). America: AMACOM: American management Association.

Gaya MLA

Utami, Sri., Evenson, Renee. "Customer Service Training 101: Quick And Esay Techniques That Get Great Results". Third Edition America: AMACOM: American management Association, 2018. Text.