Gaya APA

Prasatya, E. (2019). Service is fun : tips & trick for customer service excellence (cet. 1). Depok: Penerbit Gemala.

Gaya MLA

Prasatya, Eka. "Service is fun : tips & trick for customer service excellence". cet. 1 Depok: Penerbit Gemala, 2019. Text.