Gaya APA

ROBERT, . (2006). THE COMPLETE IDEALS GUIDES: DIRECT MARKETING (ED. 1 CET. 1). JAKARTA: KENCANA PRENADA GRUP.

Gaya MLA

ROBERT, . "THE COMPLETE IDEALS GUIDES: DIRECT MARKETING". ED. 1 CET. 1 JAKARTA: KENCANA PRENADA GRUP, 2006. Text.