Gaya APA

FILBERT, R. (2014). PASSIVE INCOME STRATEGY: THE SECRET OF FINANCIAL FREEDOM . JAKARTA: PT. ELEX MEDIA KOMPUTINDIO.

Gaya MLA

FILBERT, RYAN. "PASSIVE INCOME STRATEGY: THE SECRET OF FINANCIAL FREEDOM". JAKARTA: PT. ELEX MEDIA KOMPUTINDIO, 2014. Text.