EDDY Kurnia. (2013). Customer Is Changel. Jakarta: Republika.
Chicago Style aipamenaEDDY Kurnia. Customer Is Changel. Jakarta: Republika, 2013.
MLA aipamenaEDDY Kurnia. Customer Is Changel. Jakarta: Republika, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.