Gaya APA

F.GUSWAI, C. (2014). RETAIL EXCELLENGE SERIES ; HOW TO CREATE OUTSTANDING SERVICE . Jakarta: PT.Elex Media Komputindo.

Gaya MLA

F.GUSWAI, CHRISTIAN. "RETAIL EXCELLENGE SERIES ; HOW TO CREATE OUTSTANDING SERVICE". Jakarta: PT.Elex Media Komputindo, 2014. Text.