Gaya APA

D., F, T, P., Chandra, G. (2019). Service, Qualitry, & Customer Satisfaction (Cet.1). Yogyakarta: Penerbit Andi.

Gaya MLA

D., Fandy, Tjipto,, Ph.., Chandra, Gregorius. "Service, Qualitry, & Customer Satisfaction". Cet.1 Yogyakarta: Penerbit Andi, 2019. Text.